ms win 7 home premium

Hi bjijuyamuna,

I suggest you to try restoring the system to factory defaults by following the steps in the link provided below:
http://dell.to/Tqq3QZ

However, if you still receive the same error message, then I will need the system Service Tag to check the system details. I have added you as a friend. Please accept my friend request by clicking on my name highlighted in blue and then click on “Friends” tab at the top and then click on “Request to Review” and finally click on “Accept” button.

I am sending you a private message as well. Click on “Inbox” to respond to the message and provide system’s Service Tag and contact details(including the name on the account) so I may access your system records and check for further course of action. You could also click on Start Conversation to send a private message.

See my wiki Windows Reinstallation Guide/A Clean Install of Windows 7:

http://en.community.dell.com/support-forums/software-os/f/3524/t/19480753.aspx 

Request a Reinstallation DVD or alternatively use a Windows 7 Home Premium Digital River .iso and phone activation.