Thanks to Keiths wonderful help , i managed to successfully install XP and reformat my computer. Unfortunately as always seems to be the case with me I have another obstacle in my way . I wanted to install the service pack mainly to protect my laptop against the sasser virus. I put the the program 1& 2 on a cd when i press it to install it it extracts all the files, reaches the point where it tells me to back my files and asks me if I wish to archive them or not then I put yes and it begins to install but reaches after a few seconds a point and it stops go any further even after leaving it for few hours . Hopefully you might have an answer for why this problem is occuring.
Thank you in advance
And hope to hear from you soon