Thanks Island Dog!
I have the Object Desktop Ultimate, and Impulse updated Fences, but still gave reminder after every reboot (there was few Windows updates as well), but your link (1st post) fixed that annoying "reminder", etc. After installation, it opened impulse, and impulse still showed that yellow icon - "updates available"... got impulse installer error and suddenly yellow icon was gone, and impulse asked to reboot.
Now everything works perfectly...
So i think that the reason for extra "errors" was, because Windows updates + Impulse update + Fence update. lol