You have to run this as administrator in order to activate it.
I would think that that bit of information should have been been in the license.

[ @Ashraf] Where do you get your “facts” from? It also uses ancient ActiveX technology and I note the online help page loaded in IE9 under vista tried to load Adobe Flash Player which is looooooooong discontinued! You also fail to mention that this cannot edit multiple dissimilar videos and can only edit on key-frames! Which should not be the case if there was no re-encode as it should be able to join a P or B frame to a key-frame in the next section so should be frame accurate on the cut point but be key-frame only on the paste start point. Your descriptions are just biased and dishonest once I’ve added a video twice so I have two identical spec videos in the timeline I can no longer access transitions screen there is very little I can do compared to something like VSDC Free Video Editor this is NOT a full featured video editor but a tiny subset of what most people need! Where does it say in the UI how long remains of the 1 year license? Also where transitions are used the video is re-encoded, of course it has to be… The screen capture is using ancient technology too with the sound sources only being DirectSound sources and therefore cannot capture system sounds if there is no discrete sound mixer or equivalent recording device and the text “Supports Windows 7, 8/8.1, 10, and 11 (32-bit and 64-bit)” is incorrect it also supports XP and Vista because it is entirely based around ancient XP technology and does not use any of the more modern API’s like WASAPI.