Many modern games use a separate launcher (like Steam, Epic Games, or a custom launcher) which opens the actual game in a secondary process. If you attach Cheat Engine to the launcher, the scan will fail. Open the game and load into your save or match. Alt-Tab out and open Cheat Engine. Click the (Select Process button).
Understanding why Cheat Engine triggers this thread allocation failure is the first step toward fixing it:
: Ensure the drive where Cheat Engine is installed has at least 20GB of free space for temporary scan results. Change Scan Settings :
In the same menu, you can set a for scan results to a drive with more space or fewer permission restrictions. Many modern games use a separate launcher (like
Parsing/type-conversion failure
Let's get right to the fixes. Begin with the first solution and work your way down the list.
This usually appears when you try to run a but haven't entered a value to search for. Alt-Tab out and open Cheat Engine
Modern games use systems like or BattlEye that intentionally crash Cheat Engine's scanning threads to prevent hacking. Verify if the game has an active anti-cheat.
What specific (e.g., 4 Bytes, Float, String) are you using?
| Symptom / Error | Most Likely Cause | Quick Fix | | :--- | :--- | :--- | | Please fill something in | The box is empty. | Type the number you want to find in the "Value" field. | | Access violation at address... / Thread 0 scan error | Memory fragmentation or multi-core instability. | First : Force CE to run on a single CPU core via Task Manager. Second : Reduce the scan buffer size in CE's settings. | | (100) appears in the error | This was likely the last scanned value and is just a hint. | Ensure you have re-entered the correct current value before scanning again. | Change Scan Settings : In the same menu,
Elias tried to Alt-F4, but his keyboard was dead. He reached for the power button on the tower, but a static shock threw his hand back.
Follow these methods in order to resolve the error and resume your memory scans. 1. Enter a Value Before Scanning
Find health value (currently 100, changes when you get hit).
| Action | Why it helps | |--------|---------------| | before clicking First Scan or Next Scan. | Prevents the blank input error. | | Use Unknown Initial Value correctly – only for first scan, with blank Value. | Avoids misusing the feature. | | Clear Value field when doing "Increased/Decreased" scans – but only after an Unknown initial scan. | Prevents confusion. | | Watch the status bar – Cheat Engine often shows a yellow hint before you click. | Early warning. |
If your CPU threads are failing to initialize, modifying how Cheat Engine handles scanning tasks can bypass the glitch. Open Cheat Engine and navigate to > Settings . Click on Scan Settings in the left-hand menu.