i'm having the same issue here for the past hour and i've tried everything as well, and I mean EVERYTHING and I still can't get it to work.
UPDATE:
I somehow managed to make it work again by following holger1405's solution step-by-step:
Please clear your temp files:
- Press the Windows key and "R" at the same time to open the Run dialog box.
- Into the new window, type or copy & paste: "%temp%" (Without the quotes.) > hit "ENTER"
- Now your Windows Explorer should have brought you to the "C:\Users\>your user name<\AppData\Local\\Temp" folder. > Delete all files and folders in it.
(If some files or folders can't be deleted, reboot and try again.)
Then:
- Go here and download "Revo Uninstaller. (The freeware version, Portable version works too.)
- Run "Revo Uninstaller" > EA app.
- At the end of the main uninstall, Revo will ask you which cleaning method you want to use. > Select "Advance" > Browse.
- If "Remaining registration content found" is displayed > Select All > Delete > Next
- When "Remaining Data and Folders" is displayed > Select All > Delete.
- Restart the PC
- Download a new EA app setup exe from here. (Do it even if you already have the installer!)
- Install EA app.
- Run EA app as Administrator > Click the EA app shortcut on your desktop > Run as Administrator.
- Test.
this worked for me thankfully but another user pointed out that the same issue appeared again the next day, and when they tried to repeat the steps, it didn't work anymore.
link to the referred discussion: https://forums.ea.com/discussions/dragon-age-franchise-discussion-en/ea-launcher-canceling-da-game-launch/12289774