PC troubles

Lately I have been having some weird issues with my PC and its start-up time. On Saturday, some of its system tray icons did not show up. Windows XP Professional was stuck for a long time on certain places during the start, in particular on the screen that shows system information. Months earlier I decided to rather enable the displaying of more information during the starting instead of waiting for a nondescript animation to tell me nothing.

For two days now I have been running disk checks to make sure my file system is not screwed up and causing this. The check of the biggest drive should hopefully be done when I come home from work today. Worst case scenario, I might have to re-install Windows.