Pause Patch Tuesday downloads, buggy code can kill Outlook
Found on The Register on Wednesday, 11 November 2015

The problem is with software in one of the four critical patches issued in yesterday's Patch Tuesday bundle – MS15-115. This was supposed to fix a flaw in the way Windows handles fonts, but has had some unexpected side effects for some Outlook users.
The SysAdmin sector of Reddit is awash with reports of problems with the patch, and it appears to be a cross-OS problem. The general consensus is to disable the patch on Windows Server Update Services and wait for a reissue.
First of all, the major mistake is to actually use Outlook. Second, with forced updates it won't get nicer in the future.