Because Cheat-O-Matic "injects" itself into other programs to read memory, Windows Defender or other antivirus software may flag it as a threat. Better Alternatives:
Do not download random "Cheat-o-matic 2024.exe" from pop-up ads. These are 99% malware. Instead, use the official source: i--- Cheat-o-matic Windows 11
Since Cheat-O-Matic is an older "classic" app, you may need to run it as an administrator for it to interact with modern processes. Open Your Game: most users now prefer Cheat Engine
Using Cheat-o-matic is relatively straightforward. Here's a step-by-step guide: i--- Cheat-o-matic Windows 11
For more advanced features on Windows 11, most users now prefer Cheat Engine