Restoring Dell computer

Question

hello.i had A LOT of virus' and trojans on my computer. so i installed spyware doctor and regcure to get rid of the virus' and trojans. it got rid of most of the virus' but all of the applications such microsoft word and everything in the control panel including system restore when clicked on comes up as an application error saying "the instruction at 0x636e3156 referenced memory at 0x00ad19b0. the memory could not be read. click on ok to terminate the program click on cancel to debug the program. since this deals with reference memory i got regcure. but that program didn't help the situation. i want to restore my computer but it won't let me use the system restore. is there anything i can do without taking it to a computer repairman?thank you for your help.you can email me at [e-mail]