Hello MB,
Thank you for the reply.
It is very unfortunate that none of the suggestions provided in the previous posts help.
As you have done almost everything, I would suggest you to refresh windows and check.
Refer this article:
How to refresh, reset, or restore your PC
http://windows.microsoft.com/en-IN/windows-8/restore-refresh-reset-pc
Note: Apps you installed from websites and DVDs will be removed. Apps that came with your PC and apps you installed from the Windows Store will be reinstalled. Windows puts a list of removed apps on your desktop after refreshing your PC.
Thank you