Machine was taken offsite for further work after BitLocker recovery was unsuccessful. As access to the existing Windows installation could not be recovered, Windows was reinstalled from scratch to get the computer operational again.
Microsoft 365 would not open due to missing or corrupted Office files, and the normal uninstall process was also failing because the Microsoft Get Help app would not launch. After checking firewall and proxy settings, the damaged Office installation was manually removed and Microsoft 365 was reinstalled from scratch. Office applications were then tested and confirmed working normally.
