How To Fix Unarc Dll Returned An Error Code 1 -

Once the DISM process reaches 100%, type this command and press : sfc /scannow Use code with caution.

To effectively resolve this error, it is best to try the solutions in order, as they progress from simple to more advanced checks.

Select under the Virus & threat protection settings heading. Toggle Real-time protection to Off .

Insufficient RAM is the most common cause of decompression errors. Increasing virtual memory allows your system to use hard drive space as temporary RAM. Windows + R , and hit Enter. tab and click under the "Performance" section. In the new window, go to the tab and click under "Virtual memory". Automatically manage paging file size for all drives Select your system drive (usually C:) and choose Custom size Initial size to 100 MB and the Maximum size how to fix unarc dll returned an error code 1

| Error Code | Meaning | Primary Fix | |------------|---------|--------------| | -1 | Data block corruption / decompression failure | Test RAM, disable AV | | -2 | Cannot write output file | Check disk space/permissions | | -5 | Archive header corruption | Redownload file | | -14 | CRC mismatch after decompression | Redownload or repair archive |

Delete the current setup files, clear your browser cache, and download the installer again. 3. Run SFC and DISM Scans

Go to the tab in the new window, then click Change under Virtual memory . Once the DISM process reaches 100%, type this

Uncheck .

If that doesn't work, try registering isdone.dll as well: regsvr32 isdone.dll Restart your PC. 5. Increase Virtual Memory (Pagefile)

Before fixing the problem, it helps to understand the culprit. Unarc.dll is a Dynamic Link Library file used by archiving tools (like WinRAR, 7-Zip, and many setup creators) to decompress data. "ARC" stands for Archive. Toggle Real-time protection to Off

Force a recheck of the torrent within your client to fix missing pieces.

Add the game folder to your antivirus exclusion list. Re-run the installer. 4. Re-register Unarc.dll and IsDone.dll