: This is the #1 cause. MO2 downloads mods to one folder and extracts them to another (the mods folder). Ensure the drive where MO2 is installed has enough free space—ideally double the size of the mod you are installing.
The good news? This isn't a "broken" mod issue; it’s almost always a system permission or software conflict. Here is how to fix it. 1. Run MO2 as Administrator extraction failed 7 mo2