Never install a ANY new OS over a previous one, always clean and wipe the hard disk where the OS is installed before installing a new OS – This is SOP!
Download Hirens BootCD, burn it to a disc and boot your PC or laptop from it. Choose Partitioning Tools to wipe and clean your hard disk clean for a fresh, clean and error-free installation.

http://hotfile.com/dl/94495897/63a0581/WinXP.Dark.SP3.v7.part1.rar.html
http://hotfile.com/dl/94495925/a34bd61/WinXP.Dark.SP3.v7.part2.rar.html
http://hotfile.com/dl/94497795/99ec0bc/WinXP.Dark.SP3.v7.part3.rar.html
http://hotfile.com/dl/94497761/bc9477b/WinXP.Dark.SP3.v7.part4.rar.html
http://hotfile.com/dl/94497858/67bc441/WinXP.Dark.SP3.v7.part5.rar.html
http://hotfile.com/dl/94497886/9bbeb5a/WinXP.Dark.SP3.v7.part6.rar.html