How do I reset to factory settings a hp PC running windows xp

[Samsac]

Windows xp does not work, The system restore does not work either and I don't have any xp discs as it was preinstalled. There is however a recovery partition before junking the PC I wanted to try and repair the windows operating system. Can anybody offer any help?

 

[Phillip Corcoran]

Go here: http://support.hp.com/gb-en/document/bph07145

Scroll down to sub-heading "Recovering during startup"