Hi All,
I suggest you to temporarily disable the antivirus software and check if you can install the update.
Note: Antivirus software can help protect your computer against viruses and other security threats. In most cases, you should not disable your antivirus software. If you do have to temporarily disable it to install other software, you should re-enable it as soon as you're done. If you are connected to the Internet or a network during the time your antivirus software is disabled, your computer is vulnerable to attacks.
Here is the link:
https://support.microsoft.com/en-us/kb/3038314?wa=wsignin1.0
Note: If you are running Windows 8.1, Windows RT 8.1, or Windows Server 2012 R2, you must have update 2919355 installed before you install this update.
If the issue persists, you may place the computer in a clean boot state and see if there are any software conflicts.
Clean boot will help us identify if any third party applications or startup items are causing the issue.
To do this, follow steps from this link:
http://support.microsoft.com/kb/929135
Note: After checking the functionality in clean boot, follow the suggestions under “How to reset the computer to start normally after clean boot troubleshooting”.
Please let us know the status of the issue.
Thank you.