I spent most of yesterday trying to upgrade to Windows 10. To do this, I first had to get rid of my Win8.1 Enterprise install, replacing it with Win8.1 Pro, then doing the upgrade. I had several false starts and when it was all done, I had accidentally formatted my full 1TB drive instead of just the 150GB partition I meant to use. Lost a lot of movies and digital comics (and who knows what else). Oh well.
I spent most of today doing an upgrade of a server at work from Windows 2003 (32bit) to Windows 2008 32bit (non-R2; R2 is 64bit only and there is no 32bit to 64bit upgrade path). I couldn't do a fresh install as the server runs an older (no longer supported) version of software that is pretty critical to a few key departments. The latest version is supported of course but the sponsoring department has chosen not to upgrade (the plan to migrated to a new software but that has been delayed several times).
Now, the application admin is trying to get the app working on Windows 2008 anyway she can. This is the second time I've upgraded the OS. The first time, she couldn't get the app running before the weekend was over and I had to roll back to the saved, Win2003 copy.
Fun fun. Needless to say, I've been busy this weekend.