Hello @Derek Blezard
You have tried running the commands to add the Group Policy packages, but they failed because you used PowerShell. The syntax with "FOR %F IN (...) DO" is meant for the Command Prompt (CMD), not PowerShell. That’s why I got the parser error.
To fix this, I need to:
Open CMD as Administrator (Start → type "cmd" → right‑click → Run as administrator).
Paste the commands there instead of PowerShell.
Let DISM process the packages.
This should work without the error I saw in PowerShell.
Also could you Open Settings → Apps → Default apps → Choose default apps by file type. Scroll to .exe and make sure it’s set to Application. If it’s missing, that’s the problem.
Best regards
Abhishek.