How to Fix “Unarc.Dll Returned an Error Code 11” and Prevent It From Happening Again

News: Encountering the “Unarc.dll returned an error code 11” message is a common challenge when trying to extract or install a game application or decompress a compressed file. This issue typically results from missing or corrupted DLL files essential for software installation on a Windows operating system. The utilization of pirated games from CD/DVD/USB drives may also contribute to the occurrence of this error code.

The complete error message reads: “An error when unpacking: Unable to write data to disk! Unarc.dll returned an error code: -11 ERROR: archive data corrupted (decompression failed).” Various factors can trigger this problem, including an application not meeting system requirements, an outdated Windows version, antivirus software obstructing DLL files, or damaged or absent system files.

How to Resolve “Unarc.Dll Returned an Error Code 11”

Here are several methods to fix the “Unarc.dll returned an error code 11” issue and prevent it from happening again:

Uninstall and Reinstall the App

To resolve the error, uninstalling the problematic game or program and then reinstalling it from the official website is recommended. To achieve this, access the Programs and Features window, choose the problematic game or program, and initiate the uninstallation process. After restarting the PC, download the official setup file from the website and reinstall the application to verify if the error message persists.

Use Compatibility Mode

To potentially resolve the Unarc.dll error, try running the application in compatibility mode for Windows 8 or 7 and as an administrator. Access the properties of the application, go to the Compatibility tab, and make the required selections. This step might help address the Unarc.dll error issue.

Reregister Unarc.dll

To address the error, consider reregistering the Display Link Library by locating and transferring the Unarc.dll file from a reliable source or another computer with the same Windows version. Subsequently, utilize PowerShell as an administrator to execute the regsvr32 command, and then restart the PC to check for resolution.

Delete Temp Files

Freeing up space on your computer and potentially resolving the “Unarc.dll returned an error code 11” issue can be achieved by deleting temporary files. Access the “%temp%” and “Temp” folders to remove unnecessary files and create additional space on your system. This may help alleviate the error.

Modify Virtual Memory Size

To potentially resolve the error message, consider adjusting the virtual memory size by accessing advanced system settings and configuring both the initial and maximum size. This adjustment can help address the “Unarc.dll returned an error code 11” issue.

Defragment the Drive

To potentially fix the Unarc.dll error code 11 issue, try defragmenting the drives, including the system drive. Open the Optimize Drives window, select the drive in question, and proceed to optimize it. This may help address the error.

FAQs on Unarc.Dll Returned an Error Code 11

1. What is Unarc.dll?

Unarc.dll is a dynamic link library file utilized by various applications to decompress files that have been compressed using specific algorithms.

2. What does the error message “Unarc.dll returned an error code 11” signify?

The message “Unarc.dll returned an error code 11” indicates that the unarc.dll file is either missing or corrupted, hindering the application from successfully decompressing files.

3. What are the potential causes of the “Unarc.dll returned an error code 11” issue?

This error may arise due to issues with the Microsoft Visual C++ Redistributable Package, the presence of system malware, incomplete or corrupted downloads, or problems with the unarc.dll file itself.