Cheat Engine Scan Error Thread 0 Please Fill Something In 100 New Today

This specific error message ("scan error thread 0 please fill something in") in Cheat Engine usually occurs when the user attempts to run a scan without specifying a "Value" or "Text" to search for, or when the input field is improperly formatted for the selected scan type.

Here is a proper guide to diagnosing and fixing this error.

Still getting the error?

Try these:

  • Restart Cheat Engine and your game.
  • Run Cheat Engine as Administrator.
  • Disable antivirus temporarily (some interfere with memory scanning).
  • Try a different game/process to see if the issue is specific to one application.

Quick example of correct usage

  1. Launch Cheat Engine, select the game process.
  2. In the Value box, type 100.
  3. Set Scan Type → Exact Value.
  4. Set Value Type → 4 Bytes (or appropriate).
  5. Click First Scan. ✅ No error.

Q3: I’m using Cheat Engine 7.5 or 7.6. Is this a known bug?

Yes, some versions have a focus issue: clicking “First Scan” before clicking into the value box can trigger the error. Always click the value box first.

Why Does This Error Happen? (Common Causes)

Before jumping into fixes, understanding the root cause prevents recurrence. Here are the top reasons for this error:

  1. Empty Value Field – The most common cause. You click “First Scan” or “New Scan” with nothing typed in the value box.
  2. Incorrect Value Type – You typed e.g., 100 but left the “Value Type” set to “String” or “Float” without proper formatting.
  3. Trailing Spaces – Accidentally typing a space before or after your number (e.g., 100 instead of 100).
  4. Special Characters – Using commas, dots (in non-float contexts), or letters when scanning for integers.
  5. Process Not Fully Attached – Thread 0 of the target game/process isn’t responding, so CE’s scan thread fails.
  6. Anti-Cheat Interference – Some anti-cheat systems block read/write operations, causing CE to think the input is empty.
  7. Corrupted Cheat Engine Settings – Your cheatengine-x86_64.exe settings file may be damaged.
  8. Copy-Paste Ghost Characters – Copying a value from a webpage can include invisible Unicode characters.

Q4: How do I scan for “unknown initial value” without typing a number?

You can’t. “Unknown initial value” still requires a placeholder. Type 0 or 1—the scan will ignore it. But the field cannot be empty.

Fix 3: Restart Cheat Engine and the Target Process

Sometimes Thread 0 becomes locked:

  1. Close Cheat Engine completely.
  2. Close the game/application you’re trying to cheat.
  3. Reopen both.
  4. Attach CE to the process again (File -> Open Process).
  5. Perform a new scan with a valid value.

Fix 10: Check for Anti-Cheat Software

Some games (EAC, BattlEye, Vanguard) actively block Cheat Engine. When they do, they can force CE to report an “empty value” error because read/write calls return null.

What to do:

  • Try a different single-player, offline game (e.g., old version of Minecraft, Skyrim).
  • If CE works there, your target game’s anti-cheat is the cause. You may need to bypass or accept that scanning won’t work.

Solution 5: Reset Cheat Engine Settings

If none of the above solutions work, try resetting Cheat Engine settings to their default values:

  1. Close Cheat Engine.
  2. Open the Cheat Engine folder (usually located in C:\Users<YourUsername>\AppData\Local\Cheat Engine).
  3. Rename the CheatEngine.ini file to CheatEngine.ini.old.
  4. Restart Cheat Engine.

Conclusion

The "Cheat Engine Scan Error: Thread 0, Please Fill Something In" error can be frustrating, but it's usually resolvable by updating Cheat Engine, verifying scan settings, disabling anti-debugging mechanisms, configuring system settings, or resetting Cheat Engine settings. By following these steps, you should be able to resolve the error and continue using Cheat Engine to analyze and modify game memory.

New Solutions (100% Working)

Some users have reported success with the following additional solutions:

  • Run Cheat Engine as administrator: Right-click on the Cheat Engine executable and select Run as administrator.
  • Disable any recently installed software: Try disabling or uninstalling any recently installed software that may be interfering with Cheat Engine.
  • Use an older version of Cheat Engine: Some users have reported that using an older version of Cheat Engine (e.g., v7.2) resolves the issue.

Fixing Cheat Engine "Scan Error: Thread 0" – A Complete Troubleshooting Guide

If you are trying to hack your favorite offline game and hit the wall with the message "Scan Error: Thread 0 Please fill something in 100 new," you aren’t alone. This error is a classic Cheat Engine (CE) hiccup that usually occurs during the initial scan or when the software loses its connection to the game’s memory.

In this guide, we will break down exactly why this happens and provide step-by-step solutions to get your scans running again. What Causes the "Scan Error: Thread 0" Message? This specific error message ( "scan error thread

This error is essentially Cheat Engine’s way of saying it has no data to work with. The "Thread 0" part indicates that the scanning threads couldn't find a valid memory range to search. Common culprits include:

The Game Process Closed: The game crashed or was closed, but CE is still trying to read it.

Administrative Restrictions: CE doesn't have the permissions needed to "hook" into the game.

Antivirus Interference: Your security software is blocking CE from accessing another program's memory (a behavior common to malware).

Incorrect Scan Settings: Trying to scan for a value type that doesn't exist or using an invalid address range. How to Fix Cheat Engine Scan Errors 1. Run as Administrator (The #1 Fix)

Most modern games have protection layers that prevent external programs from reading their memory. Close Cheat Engine and your game. Right-click the Cheat Engine shortcut. Select "Run as Administrator." Do the same for the game launcher if necessary. 2. Re-attach the Process

If you left Cheat Engine open while restarting your game, the "Process ID" has changed. Click the Computer Icon (Select Process) in the top left. Go to the "Processes" tab. Re-select the game's executable (.exe). Try your scan again. 3. Check Your Antivirus / Windows Defender

Antivirus programs often flag Cheat Engine because its core function—injecting code into other processes—is exactly what viruses do. Add the Cheat Engine folder to your Exclusions list. Still getting the error

Temporarily disable "Real-time protection" to see if the scan error disappears. 4. Adjust "Scan Settings" in Options If the error persists, your scan ranges might be messed up. Go to Edit > Settings. Click on Scan Settings.

Ensure that "MEM_PRIVATE", "MEM_IMAGE", and "MEM_MAPPED" are checked (though usually, just Private and Image are enough).

Make sure the start and end addresses are set to the default (0000000000000000 to 7FFFFFFFFFFFFFFF). 5. Use the "DBVM" Debugger (Advanced)

If the game has basic anti-cheat, it might be blocking the standard Windows API calls CE uses. In CE Settings, go to Debugger Options.

Change the Debugger method to "Use DBVM kernelmode debugger."

Note: This may require a system restart and BIOS support for virtualization. Summary for "100 New" Scans

When the error says "please fill something in 100 new," it's often a prompt from a specific script or a glitch in the value field. Ensure you have actually entered a number in the "Value" box before hitting "First Scan." If you are doing an "Unknown Initial Value" scan, ensure the Scan Type is set correctly.

Pro Tip: Always make sure you are using the latest version of Cheat Engine, as updates often include fixes for thread errors on newer versions of Windows 10 and 11. Restart Cheat Engine and your game