# Version 7.12 does not work on Windows **URL:** \ **Category:** Elasticsearch\ **Tags:** windows\ **Created:** [April 25, 2021, 8:19pm UTC](https://discuss.elastic.co/t/version-7-12-does-not-work-on-windows/271203 "2021-04-25T20:19:08Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![Andrey\_Tomilin](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/andrey_tomilin/32/77563_2.png) [@Andrey\_Tomilin](https://discuss.elastic.co/u/Andrey_Tomilin)\ **Post date:** [April 25, 2021, 8:19pm UTC](https://discuss.elastic.co/t/version-7-12-does-not-work-on-windows/271203/1 "2021-04-25T20:19:08Z")
Can't install version 7.12 on Windows 10 Pro, getting this error: > Error: Could not find or load main class org.elasticsearch.tools.java\_version\_checker.JavaVersionChecker > Caused by: java.lang.ClassNotFoundException: org.elasticsearch.tools.java\_version\_checker.JavaVersionChecker I didn't install separate Java as the zip package has it inside. According to the [documentation](https://www.elastic.co/guide/en/elasticsearch/reference/current/zip-windows.html) there is no need to do anything special. Just download the zip, extract it and run the bat file. But running the elasticsearch.bat file from the "C:\elasticsearch-7.12.0\bin" writes the above errors. Also, I DO NOT have JAVA\_HOME or ES\_JAVA\_HOME variables (as in the documentation was not mentioned to set them up). P.S. I saw that similar questions in past were closed without a single comment. Hope your support team works better today. Thanks ---
**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\ **Post date:** [April 27, 2021, 12:41am UTC](https://discuss.elastic.co/t/version-7-12-does-not-work-on-windows/271203/2 "2021-04-27T00:41:21Z")
> [@Andrey\_Tomilin](#): > > getting this error Where exactly are you getting this error? ---
**Author:** ![Andrey\_Tomilin](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/andrey_tomilin/32/77563_2.png) [@Andrey\_Tomilin](https://discuss.elastic.co/u/Andrey_Tomilin)\ **Post date:** [May 1, 2021, 7:47pm UTC](https://discuss.elastic.co/t/version-7-12-does-not-work-on-windows/271203/3 "2021-05-01T19:47:46Z")
In CMD, when running the elasticsearch.bat ---
**Author:** ![warkolm](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/warkolm/32/39224_2.png) [@warkolm](https://discuss.elastic.co/u/warkolm)\ **Post date:** [May 2, 2021, 9:58pm UTC](https://discuss.elastic.co/t/version-7-12-does-not-work-on-windows/271203/4 "2021-05-02T21:58:45Z")
Can you post the entire command you are running as well as any output after it? ---
**Author:** ![Andrey\_Tomilin](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/andrey_tomilin/32/77563_2.png) [@Andrey\_Tomilin](https://discuss.elastic.co/u/Andrey_Tomilin)\ **Post date:** [May 4, 2021, 7:44pm UTC](https://discuss.elastic.co/t/version-7-12-does-not-work-on-windows/271203/5 "2021-05-04T19:44:10Z")
``` C:\ElasticSearch\7.12\elasticsearch-7.12.0\bin>elasticsearch.bat Error: Could not find or load main class org.elasticsearch.tools.java_version_checker.JavaVersionChecker Caused by: java.lang.ClassNotFoundException: org.elasticsearch.tools.java_version_checker.JavaVersionChecker ``` ---
**Author:** ![Andrey\_Tomilin](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/andrey_tomilin/32/77563_2.png) [@Andrey\_Tomilin](https://discuss.elastic.co/u/Andrey_Tomilin)\ **Post date:** [May 4, 2021, 7:51pm UTC](https://discuss.elastic.co/t/version-7-12-does-not-work-on-windows/271203/6 "2021-05-04T19:51:21Z")
Also, found on some forum to add this line in the elasticsearch-env.bat file: ``` echo %JAVA% -cp "%ES_CLASSPATH%" "org.elasticsearch.tools.java_version_checker.JavaVersionChecker" ``` Thus the whole result is: ``` C:\ElasticSearch\7.12\elasticsearch-7.12.0\bin>elasticsearch.bat "C:\ElasticSearch\7.12\elasticsearch-7.12.0\jdk\bin\java.exe" -cp "C:\ElasticSearch\7.12\elasticsearch-7.12.0\lib\*" "org.elasticsearch.tools.java_version_checker.JavaVersionChecker" Error: Could not find or load main class org.elasticsearch.tools.java_version_checker.JavaVersionChecker Caused by: java.lang.ClassNotFoundException: org.elasticsearch.tools.java_version_checker.JavaVersionChecker ``` This shows where the JAVA was found. The C:\ElasticSearch\7.12\elasticsearch-7.12.0 folder is unzipped downloaded archive without any modifications. ---
**Author:** ![Andrey\_Tomilin](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/andrey_tomilin/32/77563_2.png) [@Andrey\_Tomilin](https://discuss.elastic.co/u/Andrey_Tomilin)\ **Post date:** [May 10, 2021, 12:40pm UTC](https://discuss.elastic.co/t/version-7-12-does-not-work-on-windows/271203/7 "2021-05-10T12:40:29Z")
@warkolm , please come back! 🙂 ---
**Author:** ![Andrey\_Tomilin](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/andrey_tomilin/32/77563_2.png) [@Andrey\_Tomilin](https://discuss.elastic.co/u/Andrey_Tomilin)\ **Post date:** [May 26, 2021, 7:24am UTC](https://discuss.elastic.co/t/version-7-12-does-not-work-on-windows/271203/8 "2021-05-26T07:24:52Z")
I see that the problem was resolved with version 7.13.0. Strange that didn't see anything about it in the release notes. Anyway thanks ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [June 23, 2021, 7:24am UTC](https://discuss.elastic.co/t/version-7-12-does-not-work-on-windows/271203/9 "2021-06-23T07:24:59Z")
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