How to Run DOSBox Full Screen in Windows 7

1. Close DOSBox if it's running.
2. Click 'Start.' Type 'C:\Users\YourName\AppData\Local\DOSBox' into the search box at the bottom of the Start menu, replacing 'YourName' with your Windows account name, and press 'Enter.'
3. Double-click the 'Dosbox-[version].conf' file in the DOSBox folder to open it in a text editor.
4. Change 'fullscreen=false' in the text editor to 'fullscreen=true'.
5. Click the 'Save' option in the text editor.