I feel that W10 was designed for Computer Professionals not for Joe Bloggs and thatís where Classic Shell comes in.
If you want Microsoft Office It Costs. Look at all the options as can be expensive.
Re Firefox there may be going to be a problem with it according to a mag. I read a month ago cannot remember what that was. If I still have the mag. Will post.
There has also been comments about Classic Shell with the latest W10. Classic Shell is rather old and may not be compatible with latest W10.
It could be that Microsoft are making changes so that you have to use their software through W10 updates.
Regretfully if you need Windows you are going to pay for it.
The only solution is the Free Libra OS and their Office software.
To be clear, I have the top line Microsoft software W10; and Office 365, but I get it FREE through business. Therefore I stick with it.
Now all the info that the Magís ( like Computer Active) give out goes over my head and not really had time to go through stuff.
One of these days I will try to get my head down and go through the old Magís and sort out the Laptop.
I wish that my old Samsung was still alive. I miss it.
Good luck. But buy from a local computer store. Donít buy online or at PC world as a small store will give you great help.