Cheat Engine Scan Error Thread | 0 Please Fill Something In 100

If you have global macro software (AutoHotkey, Razer Synapse, Logitech G Hub) that sends keystrokes, it may be interfering.

Cheat Engine often fails if it does not have administrative privileges to "read" the target process's memory. Incorrect Value Type:

This error was more common in versions . Version 7.5+ has better error handling and will usually show a friendly "Please enter a value" pop-up instead of the Thread 0 error. Download the latest official version from the Cheat Engine website.

Last updated: May 2026. Applies to Cheat Engine versions 7.0 through 7.6. If you have global macro software (AutoHotkey, Razer

This error is purely user input validation – your Cheat Engine is working fine. Just fill in the value you want to search for.

Cheat Engine needs certain permissions to read a process's memory. Running it as an administrator gives it the highest level of access.

Inspect source or debug

This is a fair question. Newer software would show: "Please enter a value to scan." Cheat Engine, being deeply technical and sometimes rough around the edges, throws this low-level scanner thread error instead. It’s essentially the scanner hitting a where a numerical value should be.

If you would like to delve deeper into customizing your scan parameters, please share: The or application you are trying to attach to. Whether the game relies on a 64-bit or 32-bit architecture .

Report with details

The most common cause is clicking "First Scan" or "Next Scan" when the text box is completely empty, or when it contains non-numeric characters for a numeric scan type (e.g., typing "abc" while scanning for 4-byte integers).

If the error persists, particularly if you're seeing it in conjunction with "Access Violation" messages after the "Please Fill Something In" error is resolved, you may need to tweak CE's scan settings.