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Java 9: java.dll not found [duplicate]

why do I get this? How can I fix it?
C:\Users\ash>java version
Error: Registry key 'Software\JavaSoft\Java Runtime Environment'\CurrentVersion'
has value '1.7.0_01', but '1.7' is required.
Error: could not find java.dll
Error: Could not find Java SE Runtime Environment.

The accepted solution for Reinstalling ALL JDKs was a bit harsh.
I too experienced this problem and here is my 2 cents:
This problem started happening since I installed JDK 8 and still had JDK 6 installed. I need for different projects I'm working on.
I noticed I had both a User and a System %JAVA_HOME%, so I removed my User %JAVA_HOME% variable and left only the system one.
I also noticed that in my Oracle installation there was some Java executables and I believe those where the ones conflicting since both my Oracle and Java installations were in my %PATH% variable.
I removed all Java paths from my %PATH% Variable and only left the %JAVA_HOME%\bin at the start of the variable for avoiding any conflicts with the Oracle installation.

I had a similar issue after installing the java 1.8.
To fix this go to Advance System setting --> path and remove
C:\ProgramData\Oracle\Java\javapath;

Removing
C:\ProgramData\Oracle\Java\javapath;
work like charm

Reinstall JDK and set system variable JAVA_HOME on your JDK. (e.g. C:\tools\jdk7)
And add JAVA_HOME variable to your PATH system variable
Type in command line
echo %JAVA_HOME%
and
java -version
To verify whether your installation was done successfully.

I had a similar issue after installing the java 10.0
To fix this go to Advance System setting --> path and remove
C:\ProgramData\Oracle\Java\javapath;

I had to remove the Common Files javapath from the 'Path' that was conflicting, in order to make it work. Now thankfully the java -version works just fine.
C:\Program Files (x86)\Common Files\Oracle\Java\javapath

Make sure your JDK Path variable is directing to the \bin folder and is at the top of the list, because it always uses the first match. By moving it to the top you can make sure that no other path is matched first.
If there's any other entry that has a file called java (such as C:\ProgramData\Oracle\Java\javapath) it will run the command against that file instead of the java file in your JDK. There's no need to reinstall the entire JDK unless your files are corrupt or damaged for some reason.

This problem generally occurs in Windows when your "Java Runtime Environment" registry entry is missing or mismatched with the installed JDK. The mismatch can be due to multiple JDKs.
Steps to resolve:
Open the Run window:
Press windows+R
Open registry window:
Type regedit and enter.
Go to: \HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\
If Java Runtime Environment is not present inside JavaSoft, then create a new Key and give the name Java Runtime Environment.
For Java Runtime Environment create "CurrentVersion" String Key and give appropriate version as value:
Create a new subkey of 1.8.
For 1.8 create a String Key with name JavaHome with the value of JRE home:
Ref: https://mybindirectory.blogspot.com/2019/05/error-could-not-find-javadll.html

I edited my path to put the Oracle JDK at the start of the path and that fixed it.

Problem:
We had the same problem in our Windows 2012 server. We used JAVA_HOME environmental system variable, an we used in the PATH this kind of settings: ...%JAVA_HOME%/bin;...
and no other java related settings was in the PATH.
The problem was we had a space at the end of the value of the JAVA_HOME variable. Like 'C:\Program Files\Java\Jdk 1.8.0_172 ' so the %JAVA_HOME%/bin meant 'C:\Program Files\Java\Jdk 1.8.0_172 \bin'. So because the value was split by space and the system tried to find java.exe at 'C:\Program Files\Java\Jdk 1.8.0_172' where it is obviously not.
Solution was: Delete the space from the end of value of the JAVA_HOME !

Uninstall Java from machine
Check Java folder is deleted from Program Files
Check Registry does not have any instance of Java
Open system Variables and delete the ONLY java path from PATH
Now install the new version again.
Set the Path in System Variables.
This process cleans up all the traces of java and then install fresh java.
Note: This issues occurs when there is multiple installation and uninstall done.

You could be using a 32 bit version of java on a 64 bit environment.
Export the registry hive form HKLM\Software\JavaSoft and import into HKLM\Software\Wow6432Node\JavaSoft. For 1.6 I only needed JavaHome and RuntimeLib values.
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Javasoft]
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Javasoft\Java Runtime Environment]
"CurrentVersion"="1.6"
[HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Javasoft\Java Runtime Environment\1.6]
"JavaHome"="C:\\Java\\jre"
"RuntimeLib"="C:\\Java\\jre\\bin\\client\\jvm.dll"

None of the above worked for me, unfortunately.
The error solved when I uninstalled the old JDK versions that were installed on my computer. I did it simply with the "Uninstall or change a program" tool (under the Control Panel).

I removed the "C:\Program Files (x86)\Heroku\bin" from PATH variable and the problem has gone. I think it is probably the Heroku require different version of Java. So check all directories in your PATH variable, remove the possible ones may have confliction.

If you face this error in cmd with another error as "could not find runtime environment" after you have done all settings in Environment Variable. Then you just need to run jre.exe in your jdk folder and reinstall it and then recheck it by java -version command. Hope it will help you.

rename file "C:\Windows\System32\java.exe" to "C:\Windows\System32\java_old.exe"
CMD --> java -version
done.

In my case the regedit information was correct and the problem was solved by doing the below:
1) setting JAVA_HOME to jdk - set JAVA_HOME=C:\Program Files\Java\\bin
2) setting PATH to jre - set PATH="C:\Program Files\Java\\bin"

after adding the requirements path as illustrated up and deleting C:\ProgramData\Oracle\Java\javapath;. don't forget to reopen your editor.

Go to CMD and type the following:
SET PATH=C:\Program Files\Java\jdk1.8.0_291\bin
(here jdk1.8.0_291 represents your java version, it may differ for you)

Installing tizen in windows 7

I am trying to install tizen wearable sdk in windows 7 64bit. I have donwload the .exe however when I am trying to isntall it I am getting the following error:
error - Cannot execute Java even if it was installed. Check environment variable or Java version(over 1.6) please.
I have installed in my computer java 1.7.0_80. I have put to the path of the system C:\Program Files\Java\jre7\bin and in JAVA_HOME C:\Program Files\Java\jdk1.7.0_80
I have tried to follow the instructions from here here however I didn't mange to solve my issues.
EDIT: I followed the instructions from that link I went to cd\Users\AppData\Local\Temp and I run from there the command in console java -jar installmanager.jar. THe installation began normally. However, during the installation I got several errors.

I've had a few problems with the Tizen Wearable install too.
You can either make sure that you have Java in your path by going to a command prompt and typing java -version for example. If it works then Java is in your path. If it doesn't you have to fix it:
Win+Pause/SysRq then click on Advanced System Settings
Click on environment variables
Look for PATH and edit it
Add the path to your Java install (eg: C:\Program Files (x86)\Java\jre1.8.0_31)
Or run from the command line:
Go to a command line
cd to %TEMP%
Run Java by first entering the path to your java version (eg C:\Program Files (x86)\Java\jre1.8.0_31) then bin\java, so C:\Program Files (x86)\Java\jre1.8.0_31\bin\java.exe
If you are still having problems then edit the question to add more specific information so any other issues can be fixed.

Try to check if this directory is in the path too:
C:\ProgramData\Oracle\Java\javapath
and if there is links to missing java executables.
If this is the case, you can remove that folder to the path, replacing with the current java version you want, or fix the link from there.

It seems like the VBS script tried to delete a file that doesn't exist, you can go to the VBS file and go to the problem line, and check out which file was missing. Then decide what to do.
Maybe you should install the latest JDK, try the latest JDK and see if the problem can be solved.

eclipse open error failed to find main class in eclipse\\plugins/org...jar

at the beginning it says that failed to find java jdk or jre so i installed it. then i run it again it came up this.
It says that "Failed to find a Main Class in ... eclipse\\plugins/org.eclipse.equinox.launcher_1.3.0.v20140415-2008.jar"
java file are under
C:\Program Files (x86)\Java\jre1.8.0_31 && jre7
C:\Program Files\Java\jdk1.8.0_31 && jre1.8.0_31
my eclipse file are under
D:\迅雷下载\操作系统\eclipse
can someone tell me how to fix this ??

I was facing the similar issue where on launching eclipse photon it was giving error like:
Failed to find a Main Class in ...
eclipse\\plugins/org.eclipse.equinox.launcher*.jar
One of the reasons in my case was that I had two JDK versions on my system (JDK 6 & JDK 8).
It was running fine but stopped when I updated JAVA_HOME as JDK 6.
To rectify it, I added the below lines in the eclipse.ini file before -vmargs:
-vm
C:/Program Files/Java/jdk1.8.0_111/bin/javaw.exe
-vmargs
Basically, I passed the JDK 8 path to the eclipse as required version for eclipse photon was Java 8. And this got me working.

Try to move eclipse to some simpler path, like D:\development\eclipse

This error is due to because you might have downgraded the version of java in your environmental variables.Try changing the java version in environmental variables and then run the sts or eclipse..for better practice restart the system.hope it helps.!!

I do not mean to steal the first answer - it did help me solve my very similar issue.
I am running Windows 8 x64 bit and installed a modded version of Eclipse in a custom path (rather the default install location that was suggested) - and I got that error.
So, I deleted that Eclipse install. Then installed both x86 and x64 versions of JDK (to their default install locations), and repeated the Eclipse install to the default install location - that solved the problem for me!!!
The reason I installed both JDK versions was because I initially installed only the x64 bit version and a different error came. So I removed that Eclipse again, and repeated the JDK with both versions, etc...

I was on this problem for like an hour and a half not getting that if you save the eclipse file in a non-English named folder it doesn't open.
Hope it helps :)

Check if there are 2 Java paths mentioned in the system Variable "Path"
If yes, Move up the Java path which is mentioned in JAVA_HOME.
For example:
If JAVA_HOME=C:\Program Files\Java\jdk1.8.0_211
then the Path should have same Java version's path
Path=C:\Program Files\Java\jdk1.8.0_211
In my case I just changed the Path from
Path=C:\Program Files\Java\jdk1.6.0_45\bin
To
Path=C:\Program Files\Java\jdk1.8.0_211

Remove Eclipse from Non English folder if any.

This is issue might be because of the folder location or the JDK version,
I installed the latest version JDK and with eclipse-inst-win64 provided by eclipse i was able to install and run successfully

Same thing happens when you change eclipse.exe to a different name, seems like org.eclipse.equinox.launcher_1.3.0.v20140415-2008.jar starts the ide and looks for eclipse.exe

In my case, the Eclipse installer downloaded the wrong VM vertion. I download it separately. Choose it in clause "Java 11+ VM" and it works. Also check you do not have Russian letters in eclipse.ini. If you do, then change the encoding to UTF-8 and write the right letters in Russian.

Ant and Eclipse

Hi I am a beginner java programmer and recently I've started reading Thinking in Java 4th edition to consolidate my knoledge of java after I read Head first Java.Problem is that this book has it's own library and I can't seem to make it work in eclipse even after I did everything it said on the website guide.I instaled ant acordinly with this video guide http://www.youtube.com/watch?v=XJmndRfb1TU and i'm getting this error:
"Unable to locate tools.jar.Expected to find it in C:\Program files\Java\jre7\lib\tools.jar
Buildfile:C:\TIJ4\code\build.xml
build:
BUILD FAILED
C:\TIJ4\code\build.xml:59:J2SE5 required
Total time:0 seconds
I tried reinstaling JDK witch was suggested on a forum but it still dident work so I don't really know what to do.
Can anyone tell me how can I solve this problem? Also, more importantly, can't this be done with Eclipse alone without installing Ant(I've only used eclipse for code writing and compiling so I'm not very familiar with it)Thant you.

You are using a JRE instead of a JDK. Install a JDK and point your PATH and JAVA_HOME variables to the JDK home, not to the JRE home.
I see that Ant is using the Java Home from the JRE, e.g. C:\Program files\Java\jre7\
But it should be C:\Program files\Java\jdk1.7.0\ or similar.
Check your system's environment variables (e.g. press Windows-Key and Pause together, then select Extended Settings > Environment Variables. Check that JAVA_HOME is set to the JDK installation path and that in the PATH variables, the folder of the JDK comes before the folder of the JRE (or remove/replace the JRE path altogether with the one from the JDK).
Ant needs to find the JDK first in the PATH.

Install the JDK, latest version, and check the environment variable JAVA_HOME.
If it is not found, create it and set it to C:\Program Files\Java\jdk1.7.0 ...

tools.jar contains the java compiler, and only comes with the Java Development Kit (JDK). Your error message point to the Java Runtime (JRE).
From Eclipse, you set that from Window/Preferences/Java/Installed JREs. This is equivalent to, and will override, the alternative way of setting it via Windows environment variables.

I tried installing the JDK - jdk1.7.0_09
and did whatever was needful in the Environment Variables section
but i still was getting this error
"Unable to locate tools.jar. Expected to find it in C:\Program Files\Java\jre7\li
b\tools.jar
Buildfile: build.xml does not exist!
Build failed"
Tools.jar file did not really exists in this path, instead i found it in C:\Program Files\Java\jdk1.7.0_09\lib
so i simply copied this tools.jar file and placed it under C:\Program Files\Java\jre7\li
b\
and it worked - (not sure if that was the right way)
Now when i typed in the cmd prompt "ant" it gave me the below error :
Buildfile: build.xml does not exist!
Build failed
On investigating it further i found that if you get the above error it means that ant is installed successfully
http://ant.apache.org/manual/install.html#getBinary - Check Installation

what ivantrox86 said is true, but you need to do it in all the build.xml files, and there are like 20 of them. so go to each and every folder in the c:\tij4\code directory and find every build.xml file, and change the second argument (arg2) to 1.5, instead of the default value (${ant.java.version}). works 100%

This can happen with ant if JAVA_HOME is set incorrectly - it seems to try to guess what the value should be and comes up with the jre7 address. In my case setting JAVA_HOME to C:\Progra~1\Java\jdk1.7.0_45 fixed the problem. Of course the address will vary depending on where your jdk is installed.

please search and change this line in all files.:
<equals arg1="1.5" arg2="${ant.java.version}"/>
for
<equals arg1="1.5" arg2="1.5"/>

SDK Manager.exe doesn't work

When I clicked SDK Manager on Program Files or run it in cmd, nothing happened. I did:
Installed latest JDK
Installed latest Android SDK
Set environment JAVA_HOME and put %JAVA_HOME%\bin in path variable**
Actually a black cmd window appears and disappears a milliseconds.
How to fix it?
Edit:
I Googled day by day but can't find a solution for this. Even I set path for ANDROID_SWT it also can't run. I suspect that Android SDK has bug in its installation package.
Android installation - sdk manager.exe does not work
Android installation/SDK Manager issues
I'm totally exhausted and this is the last my try:
Uninstall JDK, Android SDK, remove all ANDROID or JAVA environment variables
reinstall JDK and Android SDK
But nothing changes.
Edit:
Actually this is the second time I meet this problem. I got this problem only after I added more Environment variables for Ant and Maven. This is the summary:
Install Windows XP SP3 --> Install JDK --> Install Android SDK --> Open SDK Manager and it works! --> append some more "bin" path of Ant and Maven in "path" variable --> Open SDK Manager and it doesn't open --> I rolled back by removing all environment variables --> SDK Manager still no opens! That's very strange! --> It is stranger when I reinstall JDK and Android SDK, it still no opens! :(

Step #1: Open up a command prompt.
Step #2: Use the cd command to move to wherever you installed your Android SDK.
Step #3: Run tools\android.
If that does not work, you should have information dumped to the command prompt that will help you diagnose your setup problem.

I was getting the error "C:\Program is not recognized as an internal or external command"
Followed by loads of "unable to copy file"
Followed by something about Android_SWT not being able to be found.
The way I fixed the problem on my system (Windows 8, 64 bit, JDK 7) was:
Create JAVA_HOME environment variable and point it to C:\Program Files\Java\jdk1.7.0_10\bin
Open ANDROID SDK DIRECTORY\tools\android.bat in your favorite text editor
Find the lines set java_exe= call lib\find_java.bat (it's split over 2 lines)
Replace the lines with set java_exe="%JAVA_HOME%\java.exe"
Save and run tools\android.bat
The problem was that the the space in the path was not being handled correctly. By wrapping the path in quotation marks, the space is then correctly catered for.

I had the same problem.
when i run \tools\android.bat, i got the exception:
Exception in thread main
java.lang.NoClassDefFoundError: com/android/sdkmanager/Main
My resolved method:
edit \tools\android.bat
find "%jar_path%;%swt_path%\swt.jar"
modify to "%tools_dir%\%jar_path%;%tools_dir%\%swt_path%\swt.jar"
save, and run SDK Manager.exe again

After a lot of searching and trying different methods, I found the solution to the problem at my end: SDK Manager couldn't find my profile directory. After setting the environment variable ANDROID_SDK_HOME (I set mine to a newly created folder C:\Android), SDK manager started no prob.

I have Wondows 7 64 bit (MacBook Pro), installed both Java JDK x86 and x64 with JAVA_HOME pointing at x32 during installation of Android SDK, later after installation JAVA_HOME pointing at x64.
My problem was that Android SDK manager didn't launch, cmd window just flashes for a second and that's it. Like many others looked around and tried many suggestions with no juice!
My solution was in adding bin the JAVA_HOME path:
C:\Program Files\Java\jdk1.7.0_09\bin
instead of what I entered for the start:
C:\Program Files\Java\jdk1.7.0_09
Hope this helps others.... good luck!

My issue was the following error on windows 7:
C:\dev\Android\android-sdk-windows\tools>android
[INFO] Starting Android SDK and AVD Manager
No command line parameters provided, launching UI.
See 'android --help' for operations from the command line.
Exception in thread "main" java.lang.UnsatisfiedLinkError: no swt-win32-3550 or
swt-win32 in swt.library.path, java.library.path or the jar file
at org.eclipse.swt.internal.Library.loadLibrary(Unknown Source)
at org.eclipse.swt.internal.Library.loadLibrary(Unknown Source)
at org.eclipse.swt.internal.C.<clinit>(Unknown Source)
at org.eclipse.swt.widgets.Display.<clinit>(Unknown Source)
at com.android.sdkmanager.Main.showMainWindow(Main.java:292)
at com.android.sdkmanager.Main.doAction(Main.java:276)
at com.android.sdkmanager.Main.run(Main.java:99)
at com.android.sdkmanager.Main.main(Main.java:88)
The solution was to disable McAfee 8.8. Apparently some recent update is now blocking my Android environment.

The way I solved your last problem was by right clicking the android.bat file, and chose edit with notepad++. I then went down to the part of the program where it had this bit of code:
cd /d %~dp0
It was also some other lines of code, but I deleted them. After deleting these other lines I simply just wrote(under the cd /d %~dp0):
cd Program Files
cd java
cd jdk1.7.0_03
cd bin
I dont know here you java.exe file is located but mine was at lest located there.

I ran into this problem: I'd get the error
C:\projects\Android\android-sdk-windows-1.5_r1\tools\lib>ddms
02:03:07 E/ddms: shutting down due to uncaught exception
02:03:07 E/ddms: no swt-win32-3550 or swt-win32 in swt.library.path, java.library.path or the jar file
java.lang.UnsatisfiedLinkError: no swt-win32-3550 or swt-win32 in swt.library.path, java.library.path or the j
ar file
at org.eclipse.swt.internal.Library.loadLibrary(Unknown Source)
at org.eclipse.swt.internal.Library.loadLibrary(Unknown Source)
at org.eclipse.swt.internal.C.<clinit>(Unknown Source)
at org.eclipse.swt.graphics.FontData.<init>(Unknown Source)
at com.android.ddms.PrefsDialog.setDefaults(PrefsDialog.java:221)
at com.android.ddms.PrefsDialog.init(PrefsDialog.java:150)
at com.android.ddms.Main.main(Main.java:74)
I got this solved by copying the swt file from eclipse into the tools directory. If you search in the directory you have Eclipse installed there is an SWT dll, named something like swt-win32-<4-digits>.dll (mine was named swt-win32-3740.dll): I copied that into the tools directory, and everything worked after that.

I solved my problem opening android.bat inside sdk/tools and setting the java_exe property, which was empty.
set java_exe="C:\Program Files\Java\jre6\bin\java"

Similar to sixty9 I renamed java.exe, javaw.exe, javaws.exe (I never delete files when troubleshooting) after I created a JAVA_HOME environment variable and added path variables.
I had installed the Java SDK on my D:\ drive ( instead of the default).
Create a JAVA_HOME variable: Variable Name: %JAVA_HOME% Value: D:\Program Files\Java.
Added the following to the Path variable:
%JAVA_HOME%\jre7\bin;%JAVA_HOME%\jdk1.7.0_03\bin;
Renamed java.exe, javaw.exe and javaws.exe.
Restarted the system and the Android SDK installer found my JDK and installed successfully.

I add new environment variable "ANDROID_SDK_HOME" and set it, like my path to android SDK folder (c:/Android) and it's work!

And if tools\android works for you while .exe doesn't, it's probably the x64 java.
It started working when i completely uninstalled JDK with JRE (shows as separate option in windows uninstal control panel applet) and android sdk and reinstalled using x86 version.
Why does it worth the time, you may ask? Well, such an inconsistency obvoiusly means that amount of testing with x64 java is zero and so you can probably experience many other failures in the future.

Finally got this torterous SDK to run.
When installing 32bit Java on 64bit windows system, set ANDROID_SWT to e:\android-sdk\tools\lib\x86
not ..\x86_64
Dear Android SDK team,
I genuinely hope some serious attention is being paid to these problems. SDK should be effortless to set up. This is how you lose customers to other platforms where this kind of thing is a one-click ordeal.
I was going to buy another android device to test my game on, but after last 2 days trying to traverse the maze of your incompetence I think i'll just stick with iOS as my main development target.

I solved this problem, which occured for me after manually installing the ADT (4.2/api 17) bundle on Windows 7 64 bit in C:\Program Files.
The steps I had to take:
Set the JAVA_HOME environment variable to the installation directory of the (64 bit) JDK, C:\Program Files\Java\jdk1.7.0_11 in my case.
Run SDK Manager as administrator at least once. SDK Manager allows you to change files in Program Files, so you should give it the proper access rights.

None of the Solution worked for me
Just open sdk/tools/
Edit android.bat
Replace set java_exe="C:\Program Files\Java\jdk1.7.0_13\bin\java.exe" //your java path
Copy the sdk manager and avd from any tools/lib if its not in sdk/ base folder

I FINALLY GOT THIS WORKING AFTER 2 SOUL DESTROYING EVENINGS OF TRYING! IF I EVER MEET AN ANDROID SDK DEVELOPER I WILL HACK HIM TO DEATH WITH HIS OWN KEYBOARD
Anyway, tips for getting it working on Windows 7 64 bit...
I suspect for me it was multiple problems as none of the suggestions worked so I will list all the things I did to finally get it working
1) Install the 32 BIT version of Java JDK (yes, even if you are running 64bit Windows)
2) Install both the SDK and the JDK to paths that have no spaces in (I used C:\Android and C:\Java32)
3) In the Windows environment variables screen (System Properties > Advanced Settings > Env vars), there's two places you can enter the variables, the "User Variables" and "System variables". I put them in both and included the "bin" bit in both e.g.
JAVA_HOME = C:\Java32\jdk1.8.0_20\bin
Path = C:\Java32\jdk1.8.0_20\bin;other paths should come AFTER the jdk...
4) Edit the file tools\android.bat and look for the following:
set java_exe=
call lib\find_java.bat
change this to:
set java_exe="C:\Java32\jdk1.8.0_20\bin\java.exe"
rem call lib\find_java.bat
You can also put the "#echo off" to "#echo on" at the top of the file for debugging purposes
Good luck!

I had this same problem and after trying a variety of things like changing the path variables I went to java.com on a whim and downloaded java, installed, and lo and behold the sdk manager worked after that.

Had the same problem and tried everything I browse in several forums till I found a clue, then finally solved the problem.
Basically I installed the SDK and worked ok, then my Windows Vista crashed, on restart I run SDK again but it only opened a CMD window which closed immediately.
So here's a list of useless things I did:
Went to CMD "d:/java/android/tool" and execute "android.bat", didn't work and show an pointer exception error.
Reinstalled the whole thing JDK + SDK
Changed the system path to a new folder
I traced and deleted all android occurrences on Regedit
At this point I was seriously considering start learning objetive-c was not a bad idea, finally I did this:
delete ".android" folder from "c:/users/youruser/"
delete all files within "c:/users/youruser/AppData/Local/Temp"
reinstall SDK
it WORKED !! I'm not sure though if is necessary to uninstall SDK (since I had again to download all packages & platforms) and just clear the temp folder.
Hope this helps.

I fixed this issue by reinstalling it in Program Files, it originally tried to install it in c:/Users/.../AppData/Android/....
Mine was caused by a user permission issue that running as admin didn't seem to fix (perhaps because they call batch files?).

I had the same problem, running X64 Java (1.7.0_03-b05). Even though I had both C:\Program Files\Java\jre7\bin and C:\Program Files\Java\jdk1.7.0_03\bin listed in my path, it wouldn't start - just flashed a command prompt.
The tools\lib\find_java.bat file was reporting that it was attempting to run C:\Windows\system32\java.exe but failed. Huh? I checked, and found outdated copies of java.exe, javaw.exe and javaws.exe in my C:\Windows\system32. How did those get there, I didn't put them there!
I deleted those three files from C:\Windows\system32 and the problem was fixed.
Thinking about it, the problem likely would have been fixed by making sure thatC:\Program Files\Java\jre7\bin and C:\Program Files\Java\jdk1.7.0_03\bin were at the START of my PATH variable instead of tacked onto the end.

I was experiencing the UnsatisfiedLinkError on Windows 7 64-bit after installing adt-bundle-windows-x86_64-20130717.zip:
Exception in thread "main" java.lang.UnsatisfiedLinkError: no swt-win32-3550 or swt-win32 in swt.library.path, java.library.path or the jar file
The root cause was that McAfee has a feature that blocks loading DLL's from the temporary directory. This is a problem because android.bat copies a bunch of JAR and DLL files to a temporary directory and runs the program from there, to make it easy to upgrade the app in-place.
This feature can be disabled, however. You can either disable "Access Protection" altogether or only disable the feature that blocks loading DLLs from temporary folders.

I had the same issue!
I had installed the ADT bundle 64-bit, so I downloaded Java 64-bit. I messed around with paths and things, but the thing that fixed it in the end was installing Java 32-bit.
The easy fix is to install both versions. You can download them manually here.
Good luck!

When I clicked SDK Manager on Program Files or run it in cmd, nothing happened
One of your problems is Long File Names in Windows. A number of the Android tools cannot handle them. I filed a bug report on them years ago, but I can't find it at the moment. I also seem to recall something about it in the INSTALL or README.
So you should install the tools in a location without spaces. Use something like C:\Android\ or C:\Android-SDK\.
#Steve and #MeatPopsicle already mentioned spaces in the pathames, but it can't be overstated.
Actually a black cmd window appears and disappears a milliseconds.
...
Even I set path for ANDROID_SWT
Out of curiosity, where did ANDROID_SWT come from?
I know Android does use ANDROID_HOME, ANDROID_SDK_ROOT and ANDROID_NDK_ROOT, and the last two should both be set because the tools use them internally. Here's the reference on ANDROID_SDK_ROOT and ANDROID_NDK_ROOT: Recommended NDK Directory?.
So you should set the three environmental variables (after ensuring the installation directory does not contain spaces):
ANDROID_HOME
ANDROID_SDK_ROOT
ANDROID_NDK_ROOT
ANDROID_HOME is set to the directory where the hidden directory .android is.
ANDROID_SDK_ROOT is set to the directory where the SDK is installed, like C:\Android-SDK\.
ANDROID_NDK_ROOT is set to the directory where the NDK is installed, like C:\Android-NDK\. If its not installed, then don't set it.
Once you have ANDROID_SDK_ROOT set, you can put %ANDROID_SDK_ROOT%\tools and %ANDROID_SDK_ROOT%\platform-tools on PATH. Then, you can drop into a command line and issue something like this (and it just works):
adb list

What I did was:
set a new environment variable in the top user section.
VARIABLE NAME: JAVA_HOME
VARIABLE VALUE: set it to the installation directory of your most recent JDK.
For me it was, C:\Program Files\Java\jdk1.7.0_13 . Run SDK Manager as administrator at least once. I use windows 7. This method worked for me after a lot of research.
What I dont understand is when using 'where java' in the command prompt it still references C:\Windows\System32\java.exe. My SDK Manager now opens when I need it so I solved my problem.

find_java.exe doesn't seem to like the openjdk "java -version" output. I edited find_java.bat like this:
for /f %%a in ('%~dps0\find_java.exe -s') do set java_exe=%%a
set java_exe="C:\Program Files (x86)\AdoptOpenJDK\jdk-8.0.242.08-hotspot\bin\java.exe"
rem ...
for /f %%a in ('%~dps0\find_java.exe -s -w') do set javaw_exe=%%a
set javaw_exe="C:\Program Files (x86)\AdoptOpenJDK\jdk-8.0.242.08-hotspot\bin\javaw.exe"