How do you edit Windows 'hosts' file in Windows 10?

 Windows 'hosts' file contains mappings of IP addresses to hostnames.

You can find the file in the Windows System32 folder if you run your DOS program with administrative privileges as shown.

You can open this file with Notepad also run with administrative privileges. There is another 'hosts' file related to iCalendar.

It is just a text file that you can edit and save with your changes.

More here:

https://hodentek.blogspot.com/2009/07/in-vista-home-premium-computer-name-is.html

You can also use the "Hostsman" application to edit the "hosts" file:

https://www.abelhadigital.com/hostsman/#downloads

What is a Easy Transfer Cable? or do you need to go from XP to Windows 7?

You have already heard that Windows XP support is history. If not, read the following:

http://hodentek.blogspot.com/2014/01/windows-xp-support-anit-malware-support.html

After Windows XP came a number of OS Upgrades the most important ones being Windows Vista, Windows 7, Windows 8, Windows 8.1 and soon Windows 10. Of course there were two different architectures as well x32bit and x64bit.

If you had had a Windows XP and migrating to Windows 7 you would need a easy tool. Looks like Windows Easy Transfer was utility made just for this and should be available in Windows 7.

With this utility there were three ways you could transfer stuff between two computers as shown in the opening screen of Windows Easy Transfer (migwiz.exe).

If you were without a network connection you could use the Easy Transfer Cable or create a file on a external HD or a USB Flash drive.

Well what is this Easy Transfer Cable?

It is a USB Male-to-Male connector with an intervening electronic device that allows fast transfer between the connected computers while providing short-circuit protection.

You could buy this cable from a number of vendors such as Belkin (Model FSU258, FSU279),  Dynex (DX-C113231), and many others.

Here is a picture of one of the Belkin cables.

 Here is a listing of transfer support it provides.

Read more here:
http://plugable.com/products/usb-easy-tran/