On my Dell Dimension, there’s been a problem with “Help & Support”, it wouldn’t start on using the F1. Dell recommended a pcrestore, which since I had already done once, I didn’t want to repeat. I logged it in the Dell Community forum here… and joe53 referred me to Kelly’s Korner tweaks, line 235.
This is a registry update. I used this to fix the problem and I have documented my process on the Dell site.
Thanks to Joe & Kelly.