I have original windows xp professional license key for education institution without the needs of activation.
by the way, SAS is providing licenses for students. you may interested to get a copy from D303 lab.
or you may also get 1 copy, with the DVD media for only RM10 from Computer Science Society fund raising activities. :)
p/s: update your windows doesn't means you are being proof of being hack. and hacker is not interested to hack your pc also. the virus/spyware is the cause of all slowdown of pc.