Can not open Premiere Elements 15 this morning : windows

First try this. Right-click on the app shortcut and select Run as Administrator. Type in your activation number when prompted. It shouldn't ask again.

in the future, to find the best place to post your message, use the list here, https://community.adobe.com/

p.s. i don't think the adobe website, and forums in particular, are easy to navigate, so don't spend a lot of time searching that forum list. do your best and we'll move the post (like this one has already been moved) if it helps you get responses.

<"moved from using the community bugs">

Yesterday it works fine and now it ask to buy or start a trialversion.

Why?