My WinPatrol has just blocked an Adobe Flash update, thank goodness. It's a Fake update that will install malware. I've seen several pop-ups this week saying I needed to update Flash but I didn't click on them. Goodness knows how this arrived.
I'm dashing out and time is short so I hope you don't mind me referring you to this thread http://answers.microsoft.com/en-us/windows/forum/windows_10-update/adobe-flash-update-kb4020821-may-2017-patch/6b90e021-5310-4e3b-9f4e-5c55f7bc6979?tm=1494661166227
instead of repeating the details.