That McCain was, and still is with the benefit of hindsight, a better choice.
Oh, probably standardization and compatibility with government systems, if the government is going to accept the ID.
XP is no longer secure. It's a 10-year-old os and it sucks. And oh yeah McAfee (and Norton) suck rotten eggs.
There are very few jobs out there. Right now pizza delivery/welding/dope dealing looks pretty good