This will allow you to bypass the Microsoft Genuine
Validation thingy
this method works better than many others. forget the
cracks and injectors etc... this is the BEST WAY:

1) start > run > "regedit" (without the quotes of
course)

2) go to the key:

HKEY_LOCAL_MACHINE\SOFTWARE\MICROSOFT\Windows
NT\CurrentVersion\WPAEvents\OOBETimer

...and doubleclick on it. Then change some of the
value data to ANYTHING ELSE...delete some, add some
letters, I don't care...just change it!

now close out regedit.

3) go to start > run >
"%systemroot%\system32\oobe\msoobe.exe /a" (again,
dont type the quotes)

4) the activation screen will come up, click on
register over telephone, then click on CHANGE PRODUCT
KEY, enter in this key: JG28K-H9Q7X-BH6W4-3PDCQ-6XBFJ.
Click on Update and close the window

Now you can do all the updates without activating, and
the Genuine Microsoft Validation thingy won't bug you
no more!!