Need to reinstall Windows XP Professional - but no longer have the CD

My laptop has got several problems all pointing to needing a reinstall. Its genuine - and I can extract the key from the registry.

But where can I get a copy of XP Professional to install? A bit reluctant to use torrents, but would be over the moon if someone could point me to a genuine iso.

For a laptop, you may have to buy a replacement disc from the manufacturer. Many laptop vendors use custom ISO's for many of their models and the original key you got will only work with their custom ISO. I would contact them first.

Genuine and iso in the same phrase are a difficult catch for windows xp on the internet. Try for a used cheap retail copy on Ebay :)