As I mentioned in my Windows Shock and Awe (well almost) article, Windows 7 periodically marks all folders on my D: (data) drive to READ ONLY or to no attributes at all. Research via Google has shown that this is a common problem and happens in Win Vista, too, even occasionally on Win XP, although I never had it happen to me there.
Unbelieveably, one of the Microsoft “solutions” is to reformat the drive because sometimes Windows Vista and 7 have problems with NTFS drives formatted on an earlier version of Windows. Oh, brother!
I only started having this problem in mid-April, after some update (SP1 or a bit after that).
I thought the problem was solved by making sure that I took ownership of the folders on the drive … it actually went away for 2+ weeks, but came back today after another … you guessed it … Microsoft update. Arg.
Another annoyance is that periodically the icons on my desktop are “randomized” — moved around in no particular order. Seems to mostly happen on the left side of the screen top to bottom. Again, happens after an update. I’ve decided to turn off updates for awhile and only install them when I have time to put things back to normal. Of course, now I’m being nagged by the system to update, update, update. Sigh.