KB2952664 is an optional, non-security update (yes, even though it may be offered as an Importantupdate). Feel free to hide it & move on with your life.
- Uninstall KB2952664 & reboot, then...
- IMMEDIATELY run a manual check for updates & hide KB2952664 before Automatic Updates can install it again.
• HOW TO run a manual check for updates
http://windows.microsoft.com/en-us/windows/is-computer-up-to-date
• HOW TO Hide an Update or Restore a Hidden Update
http://www.sevenforums.com/tutorials/24376-windows-update-hide-restore-hidden-updates.html