If the error occurs immediately upon scanning while in a protected game, the anti-cheat is blocking it.
If you want to search for an unknown variable, change the dropdown from "Exact Value" to "Unknown initial value" before clicking scan. 2. Run Cheat Engine as Administrator
Below is a step-by-step breakdown of why this error happens and exactly how to fix it. What Causes This Error?
If you change how Cheat Engine looks for data, it changes what information it requires from you. Check the dropdown menu.
A: Cheat Engine runs the scan on multiple threads for speed. Thread 0 is the primary scanning thread. If it fails, all others halt. If the error occurs immediately upon scanning while
I can provide a more tailored solution based on those details. Share public link
The official Cheat Engine forum is the best place to seek help. Many experienced users there can provide guidance. Be sure to include details about your Cheat Engine version, the game you're trying to modify, and a screenshot of the exact error message and your scan settings.
If you are using Cheat Engine to modify a game and suddenly encounter the error message it can be frustrating. This error often brings your hacking session to a halt, specifically when performing memory scans or using the "Scan" button [1].
: Ensure the drive holding your scan results (usually your system drive's temporary folder) has at least 20GB to 80GB of free space. Change Scan Location Settings > Scan Settings Run Cheat Engine as Administrator Below is a
Backspace completely through your input box to clear out invisible characters.
Here's a detailed breakdown of why this error happens, why the number "100" often appears, and other related issues you might run into.
If "Exact Value" is selected but the input box is empty or contains an invalid character, Cheat Engine triggers this error.
The specific (e.g., 4 Bytes, Float, Double) you currently have selected. Share public link Check the dropdown menu
It is a . It does not mean your game is crashing or that Cheat Engine is broken. It means:
Some games store data in memory sections that Cheat Engine ignores by default. Open from the Edit menu. Navigate to Scan Settings . Check the box for "MEM_MAPPED" .
This error is one of the most common issues faced by new users of Cheat Engine. It is functionally a "user input error," meaning the software is preventing you from performing a scan because the instructions given to it are logically impossible or incomplete.