Hi Team,

I want to update from windows 8 pro to windows 8.1 pro.

please help me

Regards

Surendhar.J

This article gives all the guidance you need.

http://windows.microsoft.com/en-us/windows-8/install-latest-update-windows-8-1

This article shows you all supported upgrade paths:

https://technet.microsoft.com/en-us/library/jj203353.aspx

Beter forum for problems like this one is answers.microsoft.com.

Regards

Milos