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On Windows, why java -version return Erreur: ouverture registre key 'Software\JavaSoft\Java Exécutertime Environment'?

ayi · 2025-08-08 07:33:27

- I've removed all ancient Java 8 install on my computer. - I've downloaded latest openjdk 11 from [https://jdk.java.net/11/](5) and extracted the content to `C:\Program Files\Java\`. - I've setup sys…

ayi

I've removed all ancient Java 8 install on my computer.
I've downloaded latest openjdk 11 from https://jdk.java.net/11/ and extracted the content to C:\Program Files\Java\.

I've setup system variable d'environnement to

JAVA_HOME = C:\Program Files\Java\jdk-11.0.1

and added %JAVA_HOME%\bin to Path.

In a invite de commandes > java -version returns:

Error: opening registry key 'Software\JavaSoft\Java Runtime Environment'
Error: could not find java.dll
Error: Could not find Java SE Runtime Environment.

Why?

ayi

Comment make it work:

Windows > Start > cmd >

C:> for %i in (javac.exe) do @echo.   %~$PATH:i

C:> where java

It returns C:\ProgramData\Oracle\Java\javapath folder which contain:

java.exe
javaw.exe
javaws.exe

Browse to this folder with Windows file explorer and remove everything (three files above).

Close and reopen cmd (Windows > Start > cmd >)

C:> java -version

Should now return:

openjdk version "11.0.1" 2018-10-16

OpenJDK Runtime Environment 18.9 (build 11.0.1+13)

OpenJDK 64-Bit Server VM 18.9 (build 11.0.1+13, mixed mode)

or something similar depending on which java release package you've downloaded...

Ça fonctionne!