This is the most common fix. Go into your Antivirus settings and add your MO2 Installation folder Mod Base folder
To resolve this, you need to tell your Antivirus to ignore MO2's working directories. mo2 extraction failed data error exclusive
File Locking: Another program (like an antivirus or another instance of MO2) is "exclusively" holding the file. This is the most common fix
website instead of using the "Download with Manager" button. Add Antivirus Exclusions mo2 extraction failed data error exclusive