If you're a PC gamer that enjoys a bit of
All the blame can be laid on
, a general Windows 10
Microsoft has acknowledged the issue with this update, stating that some users "may experience delayed or clipped screens while running 3D rendering apps (such as games) on systems with more than one monitor." One solution is to run games in windowed (or borderless windowed) mode, rather than full screen. Microsoft also suggests starting the application with only one monitor connected.
It seem as though KB3213986 does not include any security patches, so anyone affected by multi-monitor gaming issues can safely uninstall this update while Microsoft works on a fix.