Woah, I'm very curious what kind of software you're using.

I've also had the problem of needing to replace some software, but everything seems to be working, for the most part. Then again I use mostly small, free utilities. I'm happy that my old favorite, CDBurnerXP, still works on 10. Funny, for a program with "XP" in the name

I got bitten by the forced 10 upgrade and so far I haven't had any problems at all. Everything seems to work properly, from GoToAssist to Tivo Desktop to Picasa.

I'm going to have to find worthwhile start menu tiles, though. At the moment I've removed every single tile that MS loads up the system with except for the weather, which I've made maximum size and still never look at. I pretty much only use the start menu to get to settings.