windows genuine key error

Please find the screenshot.
Windows Genuine Key errorI have tried activating with the key but it is not taking. Please suggest a solution.
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venkatspbSenior Software EngineerAsked:
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DeadmanIT ConsultantCommented:
Error indicates that the required installation files may be corrupted or unable to copy.

check with files

sfc /scannow
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awawadaCommented:
If sfc /scannow  will not help ,you will have to contact Microsoft ( http://support2.microsoft.com/gp/contactwga ) or reinstall Windows.
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nobusCommented:
did you try the slui.exe command also ?
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venkatspbSenior Software EngineerAuthor Commented:
No I have not tried slui.exe. Please suggest how to use this command.
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DeadmanIT ConsultantCommented:
Run command prompt (Run as administrator)

c:\Windows\system32\slui.exe

Type in your new valid product key number

Then next
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venkatspbSenior Software EngineerAuthor Commented:
Thanks
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