[E] failed to extract "C:\ModOrganizer\downloads\huge_mod.7z" to "C:\ModOrganizer\mods\_temp": Data error If you also see:
[E] 7z exit code: 2 That confirms the archive is corrupt (7z return code 2 = FATAL_ERROR ). From Reddit & Nexus forums (user-verified): “I extracted the .7z with WinRAR (repair mode), got a fixed .rar, then MO2 extracted that fine.” “Renaming the file to .zip tricked MO2 into using a different extractor – worked once.” “Downgraded MO2 from 2.5.0 to 2.4.4 – extraction worked again. Then upgraded back.” Final Verdict The "MO2 extraction failed data error" is almost always a corrupted download . Redownloading solves it ~90% of the time. If not, manual extraction via 7-Zip + folder install is the reliable workaround. Hardware issues or antivirus interference account for the remaining cases. mo2 extraction failed data error
Here is the complete, detailed content on the issue in Mod Organizer 2. Complete Guide: "MO2 Extraction Failed – Data Error" 1. What Does This Error Mean? When Mod Organizer 2 (MO2) shows "Extraction failed: Data error" (or sometimes "cyclic redundancy check" or "unexpected end of data" ), it means MO2’s internal archiver (7z.dll) cannot properly decompress a downloaded mod archive ( .7z , .rar , .zip ). [E] failed to extract "C:\ModOrganizer\downloads\huge_mod