This is a problem for newly installed windows 7 operating system.
Issues / Problem:- A required Windows Security Hotfix KB2533623 has not been installed. But this Hotfix is no longer available for download in MS site.
So you need to install the Hotfix KB2758857 which is available to download.
Solution / FIX:- Install this security Hotfix from the Microsoft Site.
- Download and install this update using the control panel and windows updates option.
- or instead, you can manually download this update from the details below.