To understand the fix, one must understand the architecture of the save file system. UNS4 does not save progress in the game's root installation directory. Instead, it utilizes the Windows AppData system.
This is the technical fix for advanced users. When you formatted your PC or changed Windows users, your Steam "Local User Registry" changed. To understand the fix, one must understand the
If the game refuses to recognize your save, you may need to manually move the files. To understand the fix
Locate your backup saves. Navigate to the following folder in Windows File Explorer: C:\Program Files (x86)\Steam\userdata\ To understand the fix, one must understand the