Scanning a very large amount of memory, such as a game using over 1.5GB of RAM, can cause the scan process to run out of memory and produce an error.
: Ensure there is a number in the "Value" box before clicking First Scan or Next Scan .
Are you using any specific , or starting a clean scan from scratch?
If the scan error persists, the debug settings might be too aggressive. Go to Edit > Settings > Debugger Options . Change the Debugger Method to "Use Windows Debugger" . Scanning a very large amount of memory, such
Cheat Engine requires high-level permissions to read and write into another process's memory.
This guide outlines exactly why this error pops up and delivers actionable steps to permanently resolve it. Why Does "Scan Error: Thread 0" Happen?
Your cheatengine-x86_64.exe settings file ( .ini or registry) might be corrupted, forcing the input box to default to "NULL." Go to Edit -> Settings -> General Settings and click "Reset Settings." If the scan error persists, the debug settings
By applying the solutions here—specifically the manual typing rule, the Admin + Thread 1 tweak, and the nuclear reinstall—you will eliminate this error permanently.
Do this before closing CE.
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. Cheat Engine requires high-level permissions to read and
Ensure your Scan Type is set correctly (e.g., Value Type: 4 Bytes or Float depending on what you are scanning).
The settings in Cheat Engine are incorrect for the specific game type (e.g., trying to scan a 32-bit game with a 64-bit scanner). Corrupted Installation: Cheat Engine files are corrupted. 100% Working Solutions to Fix the Scan Error Follow these steps in order to resolve the issue. 1. Run Cheat Engine as Administrator (Essential) The most common cause is a lack of elevated permissions. Close Cheat Engine completely. Right-click the Cheat Engine.exe file. Select Run as administrator . Try the scan again. 2. Use the Correct Process and Settings