Before smashing your keyboard, let's understand the enemy. Unarc.dll is a dynamic link library used by archivers (like WinRAR or 7-Zip) and game installers to decompress data. The error codes tell a story:
Specifically, means the installer attempted to write a file, but the operation failed due to one of three reasons: how to fix unarc dll returned an error code 6 fifa 13 link
Are you installing from an or a repack (like FitGirl or R.G. Mechanics)? How much RAM does your PC have? Before smashing your keyboard, let's understand the enemy
If your system runs out of physical RAM during decompression, it may trigger this error. Search for "View advanced system settings" in Windows and open it. tab, click in the Performance section. tab in the new window and click Virtual memory Mechanics)
Security software often flags the decompression process of older games as suspicious, blocking the unarc.dll or isdone.dll functions. Turn off in Windows Security.
The most common cause is the installer running out of memory while decompressing large game files. Open via the Windows search bar.
If you are trying to install a (downloaded from a repack or a cracked setup) and you suddenly face the dreaded pop-up: "Unarc.dll Returned an Error Code -6" , you are not alone.