: Games with active Easy Anti-Cheat (EAC) or BattlEye will block Cheat Engine. You must typically launch the game in an offline or "insecure" mode to use Cheat Engine effectively. Cheat Engine Wont Install · Issue #1517 - GitHub

: Find your cheatengine-x86_64.exe in the installation folder, right-click Properties , and look for settings to override system-wide "Randomize memory allocations" (Bottom-up ASLR) and set it to Off for that application.

Many users see a "Runtime error (at 104:176): Cannot open file" or "Operation did not complete because the file contains a virus" message during setup.

: Temporarily turn off Windows Defender or your third-party antivirus before running the installer.