Google Chrome wont stay as default browser

I've gone through setting it several times it is always reset and I get that horrible Microsoft Edge in its place. When I go to set it it doesnt even show up on the 'settings' screen. Not sure what I'm doing wrong as I've had Win 10 since April of this year and never had this problem. Any hints??

Make sure you are making the change from a user account with administrative rights.

Possibly useful links:

http://www.tenforums.com/browsers-em...ly-msedge.html

http://answers.microsoft.com/en-us/w...8-831427e8c4b0