But your issue isn't clear.
You can install a genuine version of XP on an XP compatible computer, but you need to be sure you have all the drivers needed for that system before you attempt the install.
Once installed satisfactorily, then with an active internet connection you will be able to activate XP.
How to activate XP.
Installing XP home on a Toshiba A150 S2194 Laptop.
Does Toshiba Tech Requires Toshiba Software installation for registering with MS / Validating the 25 digit key install sticker on the laptop case?
I have a TOSHIBA A105 S2194 laptop with no recovery disks.