Patches or corrupted local files can lead the system to believe the game has been modified.
"A running process may be interfering with the correct operation of AoE2 DE. This may be caused by anti-virus software, malware, game overlays, or other active processes on your PC" Steam Community age of empires 2 definitive edition tampering detected
: Log out of the Microsoft Store and Xbox apps, restart your PC, and then log back in. Patches or corrupted local files can lead the