Hi Daisyy,
From admin PowerShell, run the following command to reinstall Store:
Get-AppxPackage -allusers Microsoft.WindowsStore | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppXManifest.xml"}
If that doesn't help, follow one of these methods:
Option 1
Please try "Method 2" (downloading the Store Appx offline installer) in the following article:
After downloading the Msixbundle and Appx packages, you can double-click to install them. Install the Appx (dependency packages) first, then run the Msixbundle file. If you can't install the packages interactively, you can install them using the Add-AppxPackage PowerShell command.
Option 2
Open an Admin Command Prompt and type:
- winget install 9WZDNCRFJBMP
(9WZDNCRFJBMP is the SKU ID for the Microsoft Store app.)
Option 3
- Install the Xbox app by downloading the .msi from Xbox App for Windows PC.
- Open the Xbox App.
- Open Settings.
- Click on the General settings tab (left second tab on the list)
- In the upper right of the screen, there will be a list of system bundles that are missing. Click install on all of them.
- After installing the bundles, close the Xbox app.
(Credits to dre76fixitproper for this method.)
Can't reinstall Microsoft Store - Microsoft Community: