Hi, welcome to the forum.
Hardware specs would be helpful on your upgraded computer please. I haven't yet tested Cortana on the newly released RTM
version (july 29th), so I can't speak to this; but it operated problematically on the Tech Preview versions I tested. (see discussions of Cortana on the Windows10 forums here). Edge looked a little quirky when I first tried it; I had to reset the Home Page to a non-Microsoft page, such as Google.com, MSN.com, or Yahoo.com. Once I did that it worked fine.
Did you remember to run the Windows10 Upgrade Assistant prior to upgrading to check for software/hardware compatibility issues?
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