I've been having a bit of trouble with Windows the last few days, which has to to lead me to reinstall it over my current windows. Just mentioning it in case it might be relevant.

But my problem is that I'm used to having to press ALT+TAB and it would display the open programs, and when I release the combo, it would switch me to the program. But now I've noticed that when I press ALT+TAB, and release the combo, the little UI thingy still stays open and I either need to click the choice or press enter or something. And this is really annoying since I switch programs on a regular basis and this extra step feels unnecessary.