Miscellaneous topics that do not fit into specific categories.
I understand your frustration, especially since the suggested fixes only worked temporarily and introduced another issue.
Let's restore the PowerShell setting first
Right-click Start and open Terminal (PowerShell).
Run the command below.
Set-ExecutionPolicy -Scope CurrentUser -ExecutionPolicy Restricted
If prompted, type Y and press Enter.
Run Get-ExecutionPolicy to verify that it returns Restricted.
Once that's done, let me know if the setting was restored successfully.
As a next step, could you try creating a new local administrator account and check if Windows Search works normally there?
https://support.microsoft.com/en-us/windows/security/identity-signin/manage-user-accounts-in-windows