Before I start, I have to tell you that I am no expert on computers, so forgive me if I sound a little stupid! Basically, I have been using an Acer Aspire desktop for a couple fo years, and it has gradually slowed down over time, and I think it is time for some action. I have done various virus/spyware scans, disk cleanup, defrag etc etc, so I feel like a completely fresh start. I will make sure to backup any files that I need. I have heard about pressing Alt + F10 when the PC is starting up, and this apparently takes you to a recovery screen, which basically erases your PC and leaves you with the factory settings. To be honest, this is what I want- to have the PC just like it was when I got it out of the box. If anyone could help I would be very grateful! Thanks

The info you are looking for is HERE. I assume you understood that once you start the recovery process there is no turning back, and that you have already backed up everything dear to you. i_Xp/VistaUser

dw2008 Let me restress XpUser's comment, BACKUP your data before doing anything. Once started the process wipes the drive and everything you have is gone. Good luck Richard

I forgot to add one more thing ... before you do it, first download & burn XP SP3 to a CD for use after the recovery. This will help eliminate the need to apply over hundreds of individual XP critical updates & security patches. i_Xp/VistaUser

Thankyou both very much! :D It has worked perfectly, and my PC is a lot better now.