Win7 has seen a 15% market share drop in 12 months, has a phase out date, and isn't as good as Win10 for the majority of design/photography programs I use. In fact, Win10 has been the first version of Windows I've enjoyed using since XP and have been a Linux/Mac person for most of that time for OS customization and development/cross platform purposes. Win7 was trash comparatively, in my experience. This is a Win7 problem, only, which, having tried to develop a few things for XP-Vista/Win7/Linux/OSX all at the same time, I can say the Affinity team's response to this issue on Win7 is reasonable.