GW2 Game folder icon is a DUD
Right-click your GW2 file and choose properties. Verify that the file name is “GW2.exe”.
If it isn’t that exact name; right-click the file, choose ‘Rename’ and rename it to GW2.exe – then try and run it.
It was a temporary Fix I just got a dud once I restarted the pc and even after I reinstalled gw2