added script

Fix-Microsoft365Authentication.ps1

@@ -0,0 +1,5 @@
+# Note: Run this script as SYSTEM and make sure the affected user is LOGGED OFF!
+
+$User = '[{UserDirectoryName]}'
+
+Get-ChildItem -Path "${Env:SystemDrive}\Users\${User}\AppData\Local\Packages" -Directory -Filter "Microsoft.AAD.BrokerPlugin_*" | ForEach-Object { Rename-Item $_.FullName $($_.FullName + ".old") }