>However, my laptop runs Windows 7 and tonight I have a tray icon that says “Get Windows 10”.
Mine did to. I removed it.
You can’t really get rid of it. Yes, you can uninstall the KB file that does the download and you can hide the tray icon with a right click, but I have several folders worth of GWX going back several months that I haven’t been able to delete because they were installed by TrustedInstaller instead of administrator.
Uninstall optional update KB3035583 to make the nag go away.
https://support.microsoft.com/en-us/kb/3035583