Incorrect settings in the Scan Options can also trigger this error. Double-check the following before you scan:
: Security software like Comodo AV or anti-cheats (e.g., Vanguard ) often flag Cheat Engine's memory-reading behavior as a threat, cutting the "thread" mid-scan. How to Fix the Error
Always ensure you have typed a number, text string, or hex value into the main input box.
Cheat Engine is a powerful tool for modifying video games, but it can be highly frustrating when an error halts your progress. One of the most common and confusing issues users encounter is the message: . Incorrect settings in the Scan Options can also
If none of the above worked, the issue is deeper.
: After performing a "New Scan" to clear previous results, the value box is sometimes cleared automatically, leading to an accidental empty scan attempt. Resolution and Technical Significance Resolving this error is straightforward: the user must enter a value
You selected a Scan Type that demands specific parameters (such as "Value between...") but left one or both of the bounding value boxes empty. Cheat Engine is a powerful tool for modifying
Let’s simulate a correct scan for a game (e.g., solitaire, score = 100):
Following these adjustments will clear the Thread 0 exception, enabling unhindered memory indexing across the application's debugging environments.
If you are trying to use Cheat Engine on a multiplayer game or a single-player game with an active anti-cheat system, the scan will be blocked at the kernel level. : After performing a "New Scan" to clear
Click the Computer Icon (top left) → Select the game process → Click "Open" → Select "No" when asked to keep the current address list. 4. Use "All" for Scan Value If you are unsure of the value:
Scan error:thread 0:Please fill something in 100 - Cheat Engine 22-Mar-2022 —
: This is a classic visual symptom. Users often see the default value "100" (such as a standard 100 HP health pool) written in the text box graphically , but Cheat Engine's backend treats the data field as null or unreadable. Step-by-Step Fixes to Resolve the Scan Error 1. Re-enter the Numerical Value Manually
: If you do not know the number, change the "Scan Type" dropdown menu to Unknown initial value . This automatically disables the value box and prevents the "Fill something in" error. 3. Check the "Value Type" Dropdown Ensure that your Value Type matches your target data.