@ddd73 go here to this webpage and read..

https://www.geeksinphoenix.com/blog/post/2017/02/28/how-to-setup-family-safety-for-windows-10-using-microsoft-accounts.aspx

and scroll down to - just past the halfway point or so..

and ya will see this heading called - Web browsing

as ya read this - windows 10 needed an update..so prolly win 8.1 needed it too..

The update was around 11/2016

so perhaps ya did not get that update..

but sounds like ya already have it.. *just a thought..

n e ways here is what update does or not lol

(the search thingy is turned on and InPrivate browsing is turned off)..

may be a way around it.. if ya read.. *not sure tho..

the read also may help if a browser is blocked.. *just another thought..