Don't think I will be upgrading.
WIndows 10 seems to be all about turning back the mistakes of WIndows 8.
Windows 10 seems to be Windows 7 with Metro, if you want to use it (insanity?) and loses the Aero interface, and aload of guff that means I can talk to an imaginary assistant, and have a browser than is a good now as Chrome was 3 years ago.
I think i'll pass....