I came accross the following "problem": It might not feel as a big problem to everybody, but I thought I'd share it anyway. In all my videoplayers the timestamp which pops up above the "seeking slider" was not really visable and kept flickering. This made it very difficult and frustrating to search for a specific scene or time in a video. I found out, that this was caused by the latest update kb4577051 (september rollup) I have uninstalled this update and after that the irritating effect was gone. Than I tried kb4577053 (september's "security only" update and that gave me the same problem again. So, although this may not be of importance to everybody, it may very well be that there are similar visual effects or missing stuff in other software that may be caused by these updates. When the october updates are comming up in two weeks, I would consider uninstalling the september update (either rollup or security only), before installing the october updates. The players I use are MPC-HC (media player classic) and VLC player. Also, I use Windows 7 in "Classic Theme" (I thought I'd mention that because maybe the effect does not occur when you use other settings) I had this problem with two different machines. One running Windows 7 Pro, the other one running Windows 7 home premium.