@DenTiss
Given the date of your post, I would have expected someone to respond to it before this -- but since that has not happened, I will take a shot at it ...
What do you mean by "locking up"? Do you mean that the PC is freezing? Or do you mean that you are being locked out of accessing it?
Also, how old is the PC?
I am a volunteer and I do not work for, nor represent, HP