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When i'm trying to activate my Windows 7 Professional in online i've got error like this -

A problem occurred when Windows tried to activate. Error code 0x8007007B. For a possible resolution, click MoreInformation.

Contact your system administrator or technial support department for assistance.

More Information - 

The following information was found for this error :

code : 

Description :
   The filename, directory name, or volume lable syntax is incorrect.

What can i do for this? My another pc didn't raise this error. It's activated perfectly.

share|improve this question
did you use the 'same' version of Win7 on the other pc? ;) – Jakub Jan 23 '12 at 13:38
See if this helps:… (googling the exact error message coughed it up; that's often useful) – Steve Rindsberg Jan 23 '12 at 15:37
up vote 1 down vote accepted

If you are having problems activating online you can simply telephone Microsoft and activate over the phone.

share|improve this answer
and when it asks On how many computers is this version of Microsoft Windows installed on you will be honest and press 1 ... – ppumkin Jan 23 '12 at 13:50
@ppumkin: I took his question at face value. He didn't ask "How can I bootleg Windows onto multiple computers?" – JonnyBoats Jan 23 '12 at 14:15
I know.. I did write the comment did I not? :-] – ppumkin Jan 23 '12 at 14:24
How to find a phone number for a Microsoft Product Activation Center – WinOutreach4 Jan 23 '12 at 20:43

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