Apple Mac Performa 640 series - Manual (Page 120)

Reinstalling Mac OS software
You’ll install several extensions and control panels in your System Folder.
1 Start up your Macintosh while holding down the Shift key.
This starts the Macintosh with extensions turned off.
2 Insert the floppy disk named DOS Compatibility Installer Disk (for Mac OS Environment)
into the floppy disk drive.
If your computer has a built-in CD-ROM drive, and you don’t have this floppy
disk, insert the Macintosh Performa CD that contains system software.
3 Find the DOS Compatibility Installer icon and double-click it to open it.
4 Click Install in the dialog box that appears.
The software is automatically installed onto your hard disk.
5 When the installation is complete, click Quit and restart your Macintosh.
The following Mac OS software is now installed in your System Folder:
Name Location
Macintosh Easy Open Control Panels folder
Macintosh PC Exchange Control Panels folder
PC Setup Control Panels folder
PC Setup Guide Additions Extensions folder
PC Clipboard Extensions folder
PC Clipboard Translators Extensions folder
PC Print Spooler Extensions folder
PC Network Extension Extensions folder
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