Right-click your Cheat Engine desktop icon or executable file. Select .
: Ensure the "From" and "To" memory addresses are set to the default range (usually 00400000 to 7FFFFFFF ).
Right-click the Cheat Engine icon and select 5. Re-attach to the Game Process
If the game uses an anti-cheat, it might be blocking the memory access. Some users have found success by initializing the scan right after a PC restart before security software loads fully. Search for Unknown Value: Right-click your Cheat Engine desktop icon or executable
The error occurs because the "" dropdown menu in Cheat Engine is set to "Exact Value" (which is the default setting) but the " Value " text box is empty. By leaving the value blank and clicking "First Scan," you're essentially telling Cheat Engine to search for nothing, which is an invalid command.
Some users have reported success with the following additional solutions:
CE doesn't have the permissions needed to "hook" into the game. Right-click the Cheat Engine icon and select 5
. This is often necessary for CE to access the memory of other running applications. Enable MEM_MAPPED Settings > Scan Settings and ensure MEM_MAPPED
: Many antivirus programs flag CE as a "Potentially Unwanted Program" (PUP). Check your antivirus history and add an exception for the Cheat Engine folder to prevent it from blocking scan threads. 3. Re-attach the Process
The user might be searching for a 4-byte integer when the value in memory is actually a float, double, or string, resulting in an empty scan result, which can cause the subsequent "fill something in" message. Value Misinterpretation (Hidden Values): Search for Unknown Value: The error occurs because
: Running without elevated administrative access blocks Cheat Engine from reading external process memory tables. How to Fix "Scan Error Thread 0"
when you attempt to perform a scan (such as a "First Scan" or "Next Scan") without entering a value into the Cheat Engine Fix for Scan Error: Thread 0 To resolve this error, follow these steps: Enter a Value : Locate the
Fixing Cheat Engine "Scan error: thread 0: Please fill something in"