Flash is probably the least secure of all Apps and used to be a PITA for me - my HP envy is OEM and so I had to go to HP for my Flash driver updates. This was a concern because I usually get WUs at least four or five days after they're released and in that time my PC would (yet again) be vulnerable. Then sometime ago Microsoft brought in a fix - their version of Flash, which they update.
The last update from them for me was on the 13th September: 2017-09 Security Update for Adobe Flash Player for Windows 10 Version 1703 for x64-based Systems (KB4038806)
Flash was working fine until last week's strange*** WU: 2017-09 Cumulative Update for Windows 10 Version 1703 for x64-based Systems (KB4040724) but since the update it's stopped working.
Here's what I had to do when going to HP to update Flash: IE>Settings (via Gears icon)>Manage Add-ons>select 'All Add-ons' in SHOW>select Shockwave Flash Object>right-click to enable. Then install the HP Flash Update. When done, repeat all this but select Disable.
Rather a heavy-handed procedure for Flash, so when Microsoft, in response to criticism, took control it was great. If I now go to Manage All Add-ons, I see under "Microsoft Windows Third Party Application Component" the Shockwave Flash Object. It's enabled and hovering over it I see it's version 27.0.0.130, dated 2nd September, which is the one installed on my PC on the 13th September as above.
So, prior to the strange WU a few days ago, Flash was working but now it's not! Has anyone any ideas please? Has this happened to anyone else?
*** PS I say 'strange' because although the KB4040724 WU arrived on the 4th October it is shown in my WU Update History as a September WU, as you can see: