Installation fails on windows 10 because of spaces in the user name

1. OS: Windows 10.
2. Create a user te st with a name containing a space, and log in using it.
3. Install ghcup using the method described at https://www.haskell.org/ghcup/# (we need to choose To install on Windows variant with a PowerShell code snippet).
4. Select default installation paths - press Enter twice when the installer asks questions.
5. Choose to install HLS, stack, and msys2.
6. Installation fails during msys2 extraction stage, see the screenshot (it's partially in Russian, but you can find translation into English below):

The error message is:

Remove-Item: An object at the specified path C:\Users\TEST~1 does not exist.
Line:415 Col:5
+    Remove-Item -Path ('{0}/{1}' -f $env:TEMP, $archive)
+    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   + CategoryInfo          : Invalid argument: (:) [Remove-Item], PSArgumentException
   + FullyQualifiedErrorId : Argument,Microsoft.PowerShell.Commands.RemoveItemCommand

Maybe the value of TEMP environment variable will help (got using cmd):

C:\Users\te st>echo %TEMP%
C:\Users\TEST~1\AppData\Local\Temp

I didn't check it but I guess that non-latin characters in the user name might cause a similar issue. I will try to check it later.

Maybe a user name containing a space is not a good idea, but Windows perfectly allows them, and it does not exclude spaces from the user profile folder name (as Mac OS X does, AFAIK). It's not apparent for newbies trying to learn Haskell in Windows how to solve the installation issue.