Error "Object reference not set to an instance of an object"

Error "Object reference not set to an instance of an object" while installing some roles or features on Windows Server 2012

Sometimes when we have a Microsoft update (KB3000850) installed on Windows Server 2012 some feature/role installation fails with error "Object reference not set to an instance of an object". Upon doing some research it turns out to be a BUG which has been mentioned on the Microsoft Article https://support.microsoft.com/en-us/kb/3062960 there is a hotfix available for this as well but I was having difficulties to get the hotfix downloaded hence I downloaded it by an alternate method and posting the alternate link here for so that it can be used by some one in need.

Install the hotfix below and the problem should be resolved.

https://www.dropbox.com/s/j9fxit5evs03wiw/HotFix_485206_intl_x64_zip.exe?dl=0

Please note that installation of .net 3.5 feature requires sources files from Microsoft Windows 2012 ISO to be supplied as part of it x:\Sources\sxs x: is the drive letter of DVD installer image.

Installing this hotfix may need Reboot in some cases where there are some configuration changes pending on target server.