Hello,
I'm your Independent Advisor for today. I know this can be frustrating, but don't worry. I'm here to figure this out for you.
Adobe is ending support for flash by year's end. You can check the link below for more info:
https://support.microsoft.com/en-us/help/452041...
However, you download it here:
https://get.adobe.com/flashplayer/
You might also want to check if your browser blocks Adobe Flash Player in its settings and turn it on.
Hope this helps.
Note: This is a non-Microsoft website. The page appears to be providing accurate, safe information. Watch out for ads on the site that may advertise products frequently classified as a PUP (Potentially Unwanted Products). Thoroughly research any product advertised on the site before you decide to download and install it.