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Editorial Team
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Asked: 2026-05-25T14:09:17+00:00

I get this error when I try to do anything with Java in command

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I get this error when I try to do anything with Java in command prompt:

Error opening registry key 'Software\JavaSoft\Java Runtime Environment.3'
Error: could not find Java.dll
Error: could not find Java 2 Runtime Environment

I did screw around with deleting Java directories and registry a few days ago. I restarted computer and java was still working fine, then i restarted it again today and now I get this error. I have tried uninstalling and reinstalling but that doesn’t seem to work. I have the latest java JRE installed and the path set in the environment variables. Anyone have any clue how to fix this?

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1 Answer

  1. Editorial Team

    Make sure you remove any java.exe, javaw.exe and javaws.exe from your Windows\System32 folder and if you have an x64 system (Win 7 64 bits) also do the same under Windows\SysWOW64.

    If you can’t find them at these locations, try deleting them from C:\ProgramData\Oracle\Java\javapath.

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