If none of the above work, the archive itself is likely corrupted. If using a disk, check for scratches.
Long folder paths or non-English characters in the installation directory can confuse older installers like FIFA 13. Step-by-Step Fixes 1. Adjust Folder Path and Permissions Ensure the installer has a clear, short path to work with.
Lack of temporary space on the primary OS drive ( C: ) to unpack the files before moving them to the destination folder. Ultimate Troubleshooting Steps to Fix Error Code 6
To increase it:
The "unarc.dll returned an error code -6" message is a frequent obstacle for FIFA 13 players, especially during the unpacking stage of a game installation. This error typically signals that the or that the system failed to read it properly during decompression .
The installer lacks permission to write files to the destination folder. Step-by-Step Solutions
: Faulty RAM modules or insufficient virtual memory allocation. If none of the above work, the archive
Place the new file into C:\Windows\System32 and C:\Windows\SysWOW64 (if you are on a 64-bit system).
Running FIFA 13 Exclusive as an administrator can sometimes resolve Unarc DLL errors:
Faulty RAM or a lack of sufficient Virtual Memory preventing smooth data processing during massive extractions. Step-by-Step Fixes 1
The first and most critical diagnostic step is to understand what error code -6 signifies within the unarc.dll process. Unarc.dll is a dynamic link library file used by archiving tools and installers (particularly those created with Inno Setup) to decompress data. Error code -6 specifically indicates a , meaning the installer has encountered corrupted, incomplete, or modified compressed data. In the context of a FIFA 13 installation sourced from a disc image (ISO) or a compressed archive (RAR, ZIP), this almost invariably points to one of two causes: a partially downloaded or corrupted archive, or a problem during the extraction phase. Unlike other error codes that might point to insufficient disk space or RAM, code -6 is unequivocally a problem with the source files themselves. Therefore, solutions that ignore the source files, such as running Windows System File Checker or reinstalling DirectX, will prove futile.
Antivirus programs frequently flag large compressed game files as false positives, blocking the unarc.dll file from extracting them. Open > Virus & threat protection . Click on Manage settings . Toggle Real-time protection to Off .
If the installer is old (like FIFA 13), it might not play well with Windows 10 or 11. Right-click setup.exe and choose . Go to the Compatibility tab. Ultimate Troubleshooting Steps to Fix Error Code 6
Many installers for games like FIFA 13 have a checkbox to "Limit installer to 2GB RAM usage." Checking this prevents the installer from hitting memory limits that trigger the Error 6 .