How to save and restore options for cmd.exe window?

Solution 1:

Some of the options are stored in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Command Processor and the rest should be in HKEY_CURRENT_USER\Console and if you are looking for values to edit I would start with looking here. Once you get it the way you want you could easily extract it to a reg file or write it in a batch file.

Solution 2:

Do you really need to find where it is stored in the registry, since it only takes a few seconds to configure it?

ie,

Run cmd.exe
Click on the icon at the top left of the window.
Click on Properties.
Click on Font.
Select your new font and size 
Press return (or click on OK)

The settings will be saved for next time.

It would probably be quicker doing it this way than editing the registry.