I have updated my Windows 7 with KB 2852386 update and the following are few screenshots just to share :)
Start the Disk Cleanup wizard as usual and select the (C:) drive, and then click OK.
Disk Cleanup scans and searches for files on the drive that can be cleaned up and this operation will take few seconds to complete.
Click on Clean up system files
Check out the Windows Update Cleanup option and the description below when you highlighted the option. To delete the Windows Update files, click OK to proceed.