Because AoE2: DE uses Xbox Live services for multiplayer, a shaky network can trigger the anti-cheat.
Once you fix the error, prevent it from returning:
If you have done Steps 1-5 and the error persists, you may have a hardware issue (failing RAM causing bit-flips) or a rare account flag. age of empires 2 definitive edition tampering detected fixed
Age of Empires 2 Definitive Edition : How to Fix the "Tampering Detected" Error
Add the entire installation folder of Age of Empires 2: Definitive Edition to the exclusion list. Because AoE2: DE uses Xbox Live services for
Press the Windows Key, type , and press Enter. Click on Virus & threat protection .
Here is a proposal for a solid, comprehensive feature that solves this problem while adding value to the player experience. Press the Windows Key, type , and press Enter
: Log out of both the Microsoft Store and Xbox apps, restart your PC, and then log back into both before launching the game.
Sometimes the backend framework Windows uses for gaming gets stuck in a loop. Reinstalling it often clears up lingering tampering detections.
These hardware monitoring tools are notorious for triggering tampering alerts. Close them completely via the system tray.