JudasIscariot: Have you got all of the latest updates for Windows 10? Have you also restarted your PC and tried running Galaxy again?
skeletonbow: No, Windows 10 updates don't install on Windows 7. :) But yes, I have Windows 7/x64 fully updated prior to the Galaxy update. Galaxy would not start up at all, including after a reboot though. I had to uninstall it, download the installer and reinstall it, then re-import my installed games and it worked properly. It updated itself again and seems to work still.
Ah right, I forgot you had Windows 7, my bad :) So everything is working for the time being, right? :)