Cheat Engine Scan Error Thread 0 Please Fill Something In 100 < CERTIFIED ◉ >

You may be experiencing a rare bug with a specific Cheat Engine version (e.g., 7.4 or 7.5 early builds). Try:

A subtle bug exists in some CE versions (7.4 and earlier) where the value parser fails if the Hex checkbox is ticked but you type a decimal number. You may be experiencing a rare bug with

No. Some paranoid forums claim this error is a sign of a keylogger or remote access tool interfering with Cheat Engine. That is false. This is a pure programming logic error inside Cheat Engine itself. No malware uses the phrase "Please fill something in." That is wholly from the CE developer team's error messaging. | Cause | Explanation | |-------|-------------| | Invalid

A less obvious cause of this error occurs when there is a mismatch between your "Scan Type" selection and the input required. you must provide a number. However

Scenario: "Unknown Initial Value" If your "Scan Type" is set to "Exact Value" (the default), you must provide a number. However, if you do not know the current value of the item you want to hack (e.g., a health bar with no numbers displayed), you cannot provide an exact number.

| Cause | Explanation | |-------|-------------| | Invalid data type mismatch | You selected "String" as scan type but typed a number like 100, or vice versa. | | Scan type "Unknown initial value" but no follow-up | This error rarely appears with "Unknown" scans, but can if you then click "Next Scan" without entering a changed/exact value. | | Corrupted Cheat Engine settings | In rare cases, the CE settings file (userdefined.txt) or the registry entry can cause false validation errors. | | Access violation deep in memory | Very rare – the error would mention "Access Violation" not (100). |

To avoid Error Thread 0, follow this standard workflow for a basic cheat: