Hi @溪 文 ,
Welcome to Microsoft Q&A!
Could you try to run the vs_installershell.exe file to launch your Visual Studio Installer: C:\Program Files (x86)\Microsoft Visual Studio\Installer?
If it doesn’t work, you can remove the folder: C:\Program Files (x86)\Microsoft Visual Studio\Installer. Then, re-download the bootstrapper file from the following Microsoft Site and run it as administrator.
https://visualstudio.microsoft.com/downloads/
Sincerely,
Anna
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