unable to install os

[icmkarthi]

when i install go to hdd partion and show the partion but unable to install they told change hdd but my hdd is detected and working help what is that problem..

Regards

[Expertz]

Could you please specify in details which operating system you are trying to install? What is your computer specifications? And are you doing a new installation of operating system on a new computer or are you doing another clean installation on your system? Check the below link for more information:

http://windows.microsoft.com/en-IN/w...-activate-help