Right-click the Start button and select or Command Prompt (Admin) . Type the following command and press Enter: DISM.exe /Online /Cleanup-image /Restorehealth Use code with caution.
If the error persists after executing all steps above, verify that your computer has at least in free storage space on the target drive. Modern installation scripts require substantial temporary cache space to decompress staging files before final deployment.
: Unstable RAM, often due to over-clocking, can lead to data errors during decompression. Insufficient Resources : A lack of free disk space or inadequate Virtual Memory (Page File) Security Interference
The unarc.dll file is a dynamic link library system file used by Windows to decompress archives during installation processes. When you see error code -11, it is usually accompanied by the text or "Decompression failed." unarc.dll returned an error code 11 windows 11
To prevent encountering this error in the future, adopt these good habits:
Download and install both the and x64 architecture packages for the latest Visual Studio runtime.
Troubleshooting this error involves a systematic process, ruling out the most common and simple causes first before moving to more advanced solutions. Right-click the Start button and select or Command
Uncheck .
Windows 11 compresses memory to save space. This can conflict with unarc.dll .
If errors are found, you may need to disable memory overclocks (like XMP/EXPO profiles) in your BIOS or replace faulty RAM sticks. 5. Use Alternative Unpacking Software When you see error code -11, it is
Error codes in unarc.dll are specific and usually point to memory or data corruption issues. Here is the breakdown:
Check and set it to a lower value (e.g., 6, 8, or 10 ).
Ensure the target drive has at least double the required space (one for the packed files, one for the extracted data). Furthermore, check for drive errors: Open .
Set the and Maximum size based on your system RAM:
This issue most frequently hits gamers attempting to install highly compressed repacks (like FitGirl or DODI) or large application suites.