Handle small errors better

Winget-AutoUpdate-Install.ps1

@@ -488,7 +488,7 @@ function Install-WingetAutoUpdate {
         Start-WingetAutoUpdate
     }
     catch {
-        Write-host "WAU Installation failed! Run me with admin rights" -ForegroundColor Red
+        Write-host "WAU Installation failed! Error $_ - Try running me with admin rights" -ForegroundColor Red
         Start-sleep 1
         return $False
     }
@@ -634,6 +634,8 @@ else {
     Uninstall-WingetAutoUpdate
 }
 
+if (Test-Path "$WingetUpdatePath\Version.txt") {
     Remove-Item "$WingetUpdatePath\Version.txt" -Force
+}
 Write-host "`nEnd of process." -ForegroundColor Cyan
 Start-Sleep 3