Why am I unable to properly edit my environment variables?

New to Julia
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thanks!
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If you install Julia using juliaup the default setting work.

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Is that what you mean? :joy:

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No. I provided a link that explains how to install juliaup and then Julia. Please, read GitHub - JuliaLang/juliaup: Julia installer and version multiplexer

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My computer runs Windows 7 and it seems that it cannot install this version of Julia.

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:scream:

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The mainstream support for Windows 7 ended 2015, the extended support 2020. Source: Windows 7 - Wikipedia

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Your setting is in principal good, path+executable is the proper way.

Check if the path is really the right one, e.g. by running this exact path+exec in a CMD shell. See if Julia REPL pops up as expected. Perhaps you get some helpful errors now already which might lead you to some general problems.

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thanks！

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thanks!