Restart your PC and press your vendor's specific key ( Del , F2 , or F12 ) to reach the .
usually indicates a failure in the decompression process, often due to an Archive Header Is Corrupt Decompression Failed Common Causes
Open the , type Windows Security , and press Enter . Click on Virus & threat protection .
This is another highly effective fix, especially for systems with 8GB or 16GB of RAM. how to fix unarc.dll returned an error code 14
If the source provides checksums:
WinRAR uses its own internal unarc.dll , while 7-Zip uses a different LZMA engine. One may be corrupted or version-mismatched.
: Ensure your C: drive and the target installation drive have ample free space (often double the final game size for temporary files). Restart your PC and press your vendor's specific
Follow these step-by-step methods in sequence to isolate and repair the issue. 1. Verify Installation Source Integrity
Large installations often require more memory than what is physically available. Go to > About > Advanced system settings .
Restart your PC and repeatedly press the BIOS key (usually Del , F2 , F10 , or F12 ). Locate the or Overclocking options. This is another highly effective fix, especially for
Note: This utility uses Windows Update to provide the files required to fix corruptions; wait for it to complete. Once finished, type the next command and press : sfc /scannow Use code with caution.
Leftover cache data from failed installation attempts can clog the temporary directory, causing subsequent extraction attempts to fail. Press to open the Run dialog box. Type %temp% and press Enter .