Right on schedule, Microsoft rolled-out an onslaught of patches for its "Patch Tuesday" last week, and despite the fact that it wasn't the true "Update 2" for Windows 8.1 many of us were hoping for, updates are generally worth snatching up. Since the patch rollout, it's been discovered that four individual updates are causing random BSoD issues for its users, with KB2982791, a kernel-mode related driver, being the biggest culprit. Because of the bug's severity, Microsoft is recommending that anyone who updated go and uninstall a couple of the specific updates, or rollback using Windows Restore. You can uninstall these updates in much the same way you uninstall any app; the difference is that once you're in the "Programs and Features" section, you'll need to click on "View installed updates" on the left. While it's mostly recommended that you uninstall 2982791, you may wish to uninstall the others as well, just in case.
Security Update for Windows 8.1 for x64-based Systems (KB2982791)
will cause this issue on it's own.
Update for Windows 8.1 for x64-based Systems (KB2975719)
will also cause this even if KB2982791 is not installed.