How to reformat a laptop using usb

[melsamred]

i upgraded my laptop to windows 7 but i had a problem with the sound. i did everything but failed.now i want to get it back to windows xp.please help me

 

[phil22]

To put Windows XP back on it you need either the laptop maker's XP recovery CD, or there must be a factory-installed recovery partition on the hard drive. Your laptop instruction manual should explain how to run the recovery partition program.

If you don't have a recovery CD, a Windows XP CD, or a recovery partition on the hard drive, you will have to try and buy a legal copy of Windows XP or contact your laptop manufacturer and ask them to send you an XP recovery CD.