As an experimentalist, I couln/t resist. I upgraded to win10 today. So far most things seem to work.
Running on my administrator account, GC3 crashed after the loading screen displayed for a few seconds.
Running on a standard account, it seems to run fine.
I thought to check this because I know that on win 7, I could not get the SDSupport tool to run as administrator, but it worked on a normal account.