Beware of Windows XP SP3 !!!
Especially during test season.
While helping Aya study for a test, I stupidly agreed to install XP SP3 (offered by automatic updates). The nagging box asking me to restart kept appearing. During one of our study breaks, the box appeared, and having no one to tell it “No” for 5 minutes, it rebooted the computer.
When we came back, the computer was in a boot loop. Starting up in safe mode didn’t help, nor did “Last known configuration”. The solution was, oddly enough, to remove all USB devices! We used an old PS2 keyboard to run System Restore (God bless System Restore). The full solution might be here, I didn’t bother reading the rest of the thread right now.
