Windows or Mac?
What browser do you use?
Since my Windows8 had big updates, IE lost flash player. It says flash player is installed but can't see it in add-on.
I'm so stuck without flash player in the system and IE.
When I check no version installed
Check where - Control Panel? What is your Windows version?
I went thru all the MS forum and help and found : KB2670838 update for Windows 8 is the cause and uninstall the update: Then I couldn't find the update, so I performed system restore at the recovery point before the update. It worked!. Anyway my case was Windows8 had a big update and caused disk error or damage. It crippled Photoshop cs6, IE Flash Player and a slide show maker. I reinstalled Photoshop CC and worked but other apps didn't get repaired.