Reinstall MSStore Win10

open PowerShell as Administrator

Run following command:

winget uninstall 9WZDNCRFJBMP

Restart your computer

After restart, start powershell as Administrator

Run following command

winget install 9WZDNCRFJBMP –source msstore

If this did not help, try following isntructions:

Microsoft Store Missing in Apps and Features? 6 Quick Fixes (windowsreport.com)

https://helpdeskgeek.com/help-desk/cant-sign-into-the-microsoft-store-try-these-7-fixes

https://answers.microsoft.com/en-us/windows/forum/all/i-cant-sign-into-microsoft-store/64b46284-08e8-47df-9657-160efbb54a23

https://ugetfix.com/ask/fix-microsoft-store-apps-cant-connect-to-the-internet/#:~:text=These%20can%20include%20issues%20with,possible%20solutions%20to%20this%20problem.