Click the start → Run command to enter "RunDll32 advpack.dll,launchinfsection Java.inf,uninstall" In the Run dialog box, and the system will open "Microsoft VM UnInstall" after carriage return dialog box, click the "Yes (Y)" button, the system will begin uninstalling the Microsoft Java Virtual Machine, after the uninstall is completed, you need to reboot the system.
Next, delete "%systemroot%" (that is, the Windows installation directory, the Windows 2000 system is the Winnt directory, Windows xp/2003 is the Windows directory) Java folder; "%SystemRoot%\Inf" Under the java.pnf file, and "%SystemRoot%\System32" under the Jview.exe files and wjview.exe files. Finally, open Registry Editor, expand the [HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\JAVAVM] branch in turn, and [hkey_local_machine\software\microsoft\ Internet EXPLORERADVANCEDOPTIONS\JAVA_VM] Branch, delete all subkeys under these two branches.
In fact, the JRE uninstall is not clean, nor clean, unless the reload system.
Download the Java SDK. Inside the JRE is integrated. After installation, set the environment variable to the JRE path (under the Bin folder in the JDK) that is in front of the first installed SDK (JDK). Must be the front. The original JRE is not uninstalled clean, the system remains a path, you are located in the front of the system will not first go to the system to find the JRE, but first find your SDK in the JRE, the JRE is intact.
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