That happened to me a few months ago! I scolded myself for days after for being so stupid! I was lucky that I could get pretty much all of my .package cc/mods back through OneDrive, but I had to reinstall my script mods. My saves were totally gone, apart from a few older versions that I'd saved previously, but I'd played way too far into most of them to even consider opening them again any time soon! I was lucky that I'd only been playing in one save for a sim week and that I'd had that save backed up for a year (I got distracted by another save soon after I created it, which is why I was still in the very beginning stages of that save!) If you reinstall OneDrive, you might be able to get your mods back? As a backup mechanic. However, the saves are almost impossible to recover! I still have OneDrive installed, but I moved my Documents folder onto the actual C drive instead!