Apple PC Compatibility Card 7-inch card - Manual (Page 86)

Installing MS-DOS
To install MS-DOS software in a new drive container, you’ll need the
MS-DOS installation disks. Follow these steps:
IMPORTANT If you received this guide with a computer, MS-DOS is already
installed. You do not need to reinstall the software unless you are having
problems.
1 Open the PC Setup control panel and click Switch to PC.
The Macintosh desktop disappears. (If you’re using two monitors, the image
on the Macintosh monitor dims.) You see a message about a missing operating
system or about a disk error.
2 Insert the Microsoft MS-DOS Setup floppy disk and restart the PC by pressing the
Control-Alt-
…
(Del) keys.
Make sure you press the … Del key (not the Delete key) when you press
Control-Alt-… to restart the PC.
3 Follow the instructions that appear on the screen.
Press x-E to eject a disk when necessary.
4 When installation is complete, restart the PC again.
Press the Control-Alt-… keys to restart the PC.
You should now see the DOS prompt.
73 Installing the PC Compatibility Card Software