Hello RHV,
Welcome to Microsoft Q&A forum.
Before we proceed, may I know if this issue happens to any other Microsoft apps or just the Store alone?
In the meantime, please try to follow these steps and reinstall Microsoft Store.
- Type "PowerShell" in the search bar and select "Run as administrator".
- Type these commands in order.
- Get-AppxPackage WindowsStore | Remove-AppxPackage
- Get-AppXPackage WindowsStore -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}
- Restart your computer.
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