Long paths or special characters (like % , & , or non-English characters) in folder names can cause unarc.dll errors.
The unarc.dll file is a critical component used by many installers to decompress (or "unpack") files during the installation of large programs like games. When this process fails, the installer returns an error code. how to fix unarc dll returned an error code 6 fifa 13 link
If the installer isn't the problem, your hard drive might be. A failing drive can corrupt files during extraction. To check, use Windows' built-in tool: Long paths or special characters (like % ,
to ensure the installer has full write permissions to your drive. Verify System Files If the installer isn't the problem, your hard drive might be
Ultimate Guide: How to Fix "Unarc.dll Returned an Error Code -6" for FIFA 13
Using non-English characters or long file paths for the installation folder can trigger "code 6".
This error often occurs because the installer lacks permission to allocate memory.