Unarc.dll returned an error code: -11

Unarc.dll is a dynamic link library file that is used by many software programs to extract compressed files. However, sometimes users may encounter an error message that says “Unarc.dll returned an error code: -11” while trying to extract a compressed file. This error is usually caused by a corrupt or damaged Unarc.dll file, which can occur due to various reasons such as malware infection, hardware failure, or software conflicts.

If you are facing this error, here are some steps you can take to fix it:

1. Reinstall the software: Sometimes, the error may occur due to a problem with the software program that is using the Unarc.dll file. In such cases, you can try uninstalling and reinstalling the software to see if it resolves the issue.

2. Scan for malware: Malware infections can cause various system errors, including Unarc.dll errors. Therefore, it is recommended to run a full system scan using a reliable antivirus program to detect and remove any malware from your system.

3. Update drivers: Outdated or corrupted device drivers can also cause Unarc.dll errors. Therefore, you should check for any available updates for your device drivers and install them if necessary.

4. Replace the Unarc.dll file: If the above methods do not work, you can try replacing the Unarc.dll file with a new one. You can download the file from a reliable source and replace the existing file in the system32 folder.

In conclusion, Unarc.dll returned an error code: -11 is a common error that can be fixed by following the above steps. However, if the error persists, it is recommended to seek professional help to diagnose and fix the underlying issue.


In conclusion, fixing the Unarc.dll error code -11 is possible by following the steps mentioned above. However, it is important to note that prevention is always better than cure. Therefore, it is recommended to regularly update your system, use reliable antivirus software, and avoid downloading files from untrusted sources to prevent such errors from occurring in the first place.

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