Valid product key Vista says no

Hey, I have windows vista installed on my computer and that's all works well, until today when I turned on my computer it says that the product key is not valid, how do I update my product key? and also I can't access my office or anything like that because it won't let me. HELP ASAP!

Thank you

How to activate Windows 7 or Vista manually (activate by phone)
1) click Start and in the search for box type: slui.exe 4
(2) press the ENTER"" key.
(3) select your "country" in the list.
(4) choose the option "activate phone".
(5) stay on the phone (do not select/press all options) and wait for a person to help you with activation.

How to resolve common activation problems! E8E5CC039D51E3DB! 67219.entry? a = 584475978

Windows Activation video
This video will show you: - how to enable Windows - where to find your product key
How to use your product key - how to get support for the product activation

How to activate Windows Vista by phone

Microsoft Activation centers worldwide telephone numbers:
(This site is for activating Volume License, but if you call, they will help you)

The phone number is not working:
Microsoft Wordwide contacts:

Product Activation Solution Center

Windows 7 activation error: invalid product key

Stuck key (error 0xC004C4A2):

Microsoft Genuine Advantage Diagnostic tool:
Download the tool:
Post your results in this forum:


Never be afraid to ask. This forum has some of the best people in the world to help.

Tags: Windows

Similar Questions

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