Windows 10: Can i put W10 back on my laptop to replace Ubuntu

I have a Laptop that originally had Windows 7 Pro on it, which i upgraded to W10 .
However i wiped W10 from it to try out Ubuntu, now i am finding more and more Windows programs that i need will not run on Ubuntu.

My question, Can i put W10 back onto it without a fee as i had W10 on it before, or am i stuck with Ubuntu ?

Hope you can advise me.

Thank you

:)

 

Networking issue - Windows and Ubuntu


Went on a short trip, took my Windows 10 laptop, turned off the Ubuntu computer and my wife's Windows 10 computer. When I returned, I turned everything back on and nether Windows computer could see the Ubuntu 16.04 LTS computer. On the Ubuntu computer, Files/Network clicking on Windows Network received "Unable to access location - Failed to retrieve share list from server: No such file or directory" error. Both Windows computers were able to use the Ubuntu before the trip.

Any suggestions?

 

Best laptop under $800??

Well the last one I suggested seems to be the best for 650$

EDIT: to facilitate your search...

Laptop GFX benchmark list

Laptop CPU Benchmark list

 

Networking problem between Windows and Ubuntu

Went on a short trip, took my Windows 10 laptop, turned off the Ubuntu computer and my wife's Windows 10 computer. When I returned, I turned everything back on and nether Windows computer could see the Ubuntu 16.04 LTS computer. On the Ubuntu computer,
Files/Network clicking on Windows Network received "Unable to access location - Failed to retrieve share list from server: No such file or directory" error. Both Windows computers were able to use the Ubuntu before the trip.

Any suggestions?