I just received that critical update and rebooted - no issues. Make sure your installation is totally up to date and especially your browsers including IE and your graphics drivers.
If the situation continues turn off updates after using Restore and contact Technical Support linked under Useful Links at the top of this page.
Can you attach a screen shot of the computer screen so that I can check, and suggest some steps to check the issue. Because I do not think McAfee could be a cause of this problem but will check on it. Thanks,