I’ve been working with Windows since the days of Windows 3.0. I say working with because I don’t personally use it very much. Sure I have Windows 7, Windows Vista and Windows XP VMs, but I am still a Linux guy. I support Windows Desktops for quite a few people, including clients and family or friends. I am familiar with many different methods of troubleshooting for Windows and am very in depth with Information Security, so Windows security is a specialty of mine.
That’s about all I can say about the end-user Windows. I’ve worked with 3.0, 3.1, 95, 98, 98SE, ME, XP, Vista, 7 and am debating on whether I’ll even bother with Windows 8 as most everyone I’ve met wants nothing to do with it.
Oh yeah, and I’m pretty decent at Microsoft Office, too.
And QuickBooks. I support lots of multi-user installations of QuickBooks.