: Navigate to the following path on your computer:
: Select and copy all the files inside that folder. Unknown RG.7z
: Right-click the 7-Zip File Manager and select Run as administrator to ensure it has the permissions needed to associate with unknown extensions. : Navigate to the following path on your
: Instead of double-clicking, right-click the file, select Show more options , hover over 7-Zip , and choose Extract Here . How to recover corrupted 7z archive How to recover corrupted 7z archive : Paste
: Paste the copied 7-Zip files into this folder.
If the error "Unknown Format or Damaged" appears when you try to open the file normally, the archive itself may be corrupted or created with a newer version of the software.
: Close and reopen the app; you should now be able to drag and drop .7z files directly to install them. Troubleshooting "Archive is Unknown or Damaged"