Cheat Engine Scan Error Thread 0 Please Fill Something In 100 Best May 2026

If you do have a valid value and still get “thread 0 – please fill something in”:

This is the most common reason for this specific phrasing.

If you’ve landed on this page, you’re likely staring at a frustrating pop-up: “Cheat Engine Scan Error: Thread 0 – Please fill something in.” This error typically appears when you try to perform a memory scan (usually a First Scan or Next Scan) without entering any values or configuring the scan parameters correctly. If you do have a valid value and

But don’t worry. In this 100-best-ways guide, we’ve compiled every possible fix, workaround, and preventative measure to eliminate this error for good. Whether you’re a beginner modder or a veteran game hacker, these solutions cover everything from basic typos to advanced anti-cheat bypasses.

This error appears in Cheat Engine (CE) when you start a new scan (First Scan or Next Scan) but leave the Value field completely empty or enter an invalid type. Important: This is not a bug or crash

Important: This is not a bug or crash. It’s a user-input validation warning.

If the process is heavily protected, you may need a kernel-mode driver (DBVM) built into CE. If the process is heavily protected, you may

| Symptom | Solution | |---------|----------| | Blank value → Error | Fill value or use Unknown scan type | | Valid value → Still error | Check Value Type & Hex mode | | Only happens in one game | Game has anti-debug / anti-cheat | | Happens in all processes | Reinstall CE / reset settings |