How do I fix the “RollMaster is not designed to run with Windows or it contains an error” message?

If you receive the error message stating that RollMaster is not designed to run with Windows or it contains an error, this typically means the current installation files are corrupted or incomplete. Reinstalling RollMaster using a fresh set of installation files usually resolves the issue.

How to fix the error

1. Uninstall RollMaster from your computer through the Windows Add or remove programs settings.

2. Open File Explorer and navigate to your C: drive.

3. Locate and open the Acuthin folder.

4. Inside the Acuthin folder, find the 9.1.2.1 folder (or similar version folder) and delete the entire folder — this clears out corrupted installation files.

5. Reinstall RollMaster using a fresh download package.

6. After the installation completes, try launching RollMaster again.

💡 Tip

Errors like this can sometimes happen if files are corrupted during download or a previous install didn’t complete cleanly. Ensuring that you delete the old installation folder before reinstalling helps make sure RollMaster starts fresh with clean files, which prevents the error message from reappearing.