I remember one of my first computers gifted to me with Windows 3.1(1?) on it and a bunch of games installed on it. I had a lot of fun with that computer.
One day I managed to screw up Windows so it wouldn't start anymore. Luckily they were kind enough to include a copy of Windows on floppy disks. One of the disks (7/13?) had an error on it, and I never was able to reinstall Windows. Damn you, GDI.DLL. I know it was always GDI.DLL it would fail on because I probably tried to reinstall it ten times, hoping for a different outcome.
Back to DOS for me. At least I learned batch scripting...