My Windows XP Home Edition isnt genuine at the moment.. but i have the real validation key from the sticker on the side of my system unit.

Does anyone know if i can make my windows genuine by somehow entering this validation key i have... WITHOUT having to reboot my computer again?

Thxx.

You probably have a "HOME" edition and installed professional etc.

Without purchasing a real license no.

"Does anyone know if i can make my windows genuine by somehow entering this validation key"... Yep. Dl RockXP4.exe or XPPID.exe, push in your legit activation key and then go to Windows Update site - it will activate the key. Maybe. If the legit key is for a different type of OS [OEM, full retail, vol licensing..] then you must do a Repair Installation with the cd.

is it installed on more than 1 machine?

is the key an OEM key e.g dell, hp
if so, have you replaced the cpu or motherboard?

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