Hello
Thank you for your question and reaching out.
- Disable any Antivirus program or Windows firewall you may have for temporary purpose.
- Cleanup below Temp folders location -> Open Start -> Run -> Type below location one-by-one and press enter -> C:\Windows\Temp -> %USERPROFILE%\AppData\Local\Temp
- Please try this Microsoft .NET Framework Repair Tool:
- Try to Install Net framework 4.8 -> Right Click Run as Administrator
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