Hey, I'm new here and I have stumbled upon something concerning Yesterday I was working on my map: koth_billabong, its all good, the map is almost viable to be played upon. I was making most my brushes into func_detail after watching ueak_crash's guide about it. Then when I opened the file today. Poof, completely empty, not a brush or an entity in sight as if I haven't touched a thing since creating the file itself. I looked into it and apparently you should always say no to the pop up "hammer didnt shut down correctly, load last auto save?" and load it manual. Which i didn't and used this feature quite often. both my original and autosave file is empty. Also as a side note, few days before, my tf2 mysteriously "uninstalled" itself despite still having the game file, i just cant open it on steam because it says I need to install it. I can still run the map and all in hammer until this happened. Is this related? I messed around and tried to open the bsp file out of desperation, I literally have no clue what to do. (My computer is pretty much garbage, Windows 7. Im literally waiting for my newly ordered laptop to arrive in 1-2weeks.) The file size is 652KB so I think the data is still in there and I just hope that I can restore it. It would be a reeeal pain in the neck to make it from scratch. All help would be greatly appreciated, Thankyou in advance.