Without this update your computer will not receive any newer Windows Updates. I Had trouble where KB2919355 would not install properly and therefore KB2267602 would not install properly either for it requires KB2919355 to be installed first. I have only seen this error on AMD processors, the Intel processors seem to have installed this update just fine. The process I used to get it work was as follows:
- Download the KB2919355 Stand Alone Update in a folder so that it can be installed manually (Windows8.1-KB2919355-x64.msu (http://support.microsoft.com/kb/2919355))
- Create a bat/cmd file that contains the following lines and place it in the folder where you downloaded the KB2919355 update file:
Rem Remove KB2919355 package:
dism /online /remove-package /packagename:Package_for_KB2919355~31bf3856ad364e35~amd64~~6.3.1.14
Rem Clean up the WinSxS folder:
dism /online /cleanup-image /startcomponentcleanup /resetbase
Rem Clean up disk with system files remove:
cleanmgr.exe
Rem Restart computer
Rem Run offline installer:
Windows8.1-KB2919355-x64.msu
- Open an Administrator Command Prompt
- Change to the folder where you stored the two files
- Run the bat/cmd file
It will take a while for the clean-up and install but it worked. After the installation of KB2919355, restart the computer then run Windows Update. All the newer updates should be available and can now be downloaded and installed.[/list]