I am sorry if this has been discussed before, I do not like necroing threads. I strongly believe those with the same issues will all have different outcomes.

When a window is dragged across to the other monitor or used "Move window to next monitor" button the windows change size.
Going from 4k monitor to 1080p monitor windows increase in size.

I do know that the size difference does change size in (DPI) not physical size of the window as though one clicked a corner and made window 10x bigger than the 1080p monitor, that's a bit excessive.

This did not happen on previous install of windows, same monitors used, 4k monitor + 1080p monitor.
Seems like shenanigans is happening since I've registered the product, that's the only difference.

Any help on this issue is appreciated.

Hm, might some bug lurking around in this install of windows, perhaps.

Thanks Keith for looking in to this.

Looks like I have wasted my money, going to uninstall, at least it will fix this issue, can't stand it.