How to Check Windows XP Product Activation Status
Windows XP has less stringent Windows Product Activation algorithm compared with Windows Vista. For example, PC computers from branded OEM (original equipment manufacturer) is activated out-of-factory, and most hackers and pirates go for volume licensing (commonly known as VL or VOL) version of Windows XP Professional which when installed with a volume product key (VLK), does not require user to activate again online or by phone.
However, Windows XP does require product activation too. Doesn’t need (as in the case of when using OEM or VLK product key, which is instantly and automated activated) to perform steps to activate Windows XP doesn’t mean that Windows XP is not activated, and activated Windows XP is one of the requirement for the installed copy of operating system to be considered by genuine by Windows Genuine Advantage (WGA) Validation Tool.
To check, view or verify the Windows XP current activation status, open Run command from Start Menu, and run the following command:
oobe/msoobe /a
A “Activate Windows” dialog window will open to let user know the activation status. If the Windows XP has been activated, the message is “Windows is already activated. Click OK to exit.”

Else, you will be asked to let’s activate Windows now, which means that the copy of Windows XP installation is not yet activated.
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January 2nd, 2010 19:43
heres another way
1. type RUN then CMD in the start menu
2 smlgr -dli (then enter after each one)
3 smlgr -xpr
4 smlgr -dlv
December 13th, 2009 20:38
http://torrents.thepiratebay.org/3468960/Windows_XP_Activation_Crack.3468960.TPB.torrent
try this torrent, it works excellent if u are locked out of windows u can put this on a usb drive and boot in safe mode (f8) and then u can get back into windows as normal =)
July 4th, 2009 13:32
kartik.. how did u activate it??
April 29th, 2009 11:46
how to change window xp sp2 keygen when the window log on?
April 6th, 2009 23:58
hurray! key activated!
February 13th, 2009 04:46
i am trying to activate Windows XP. i can access the internet. when i go through the activitate windows i am told you cannot access the internet. i then went to register and gave up my information only to be told again that you cannot access the internet. i do not appreciate that. pleae help. thank you
February 4th, 2009 02:58
pls activated key?:(
December 29th, 2008 20:55
[...] Zur Überprüfung des Aktivierungsstatus einer Windows XP-Installation ruft man folgenden Befehl auf (Start -> Ausführen): oobe/msoobe /a via: How to Check Windows XP Product Activation Status » Tip and Trick. [...]