Microsoft KB Archive/131406

“Startup Disk Will Not Work” Error After System 7.5.1 Update

PSS ID Number: Q131406 Article last modified on 11-14-1997

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= SUMMARY =

After you install the System 7.5.1 Update on any of these types of Power Macintosh computers

6100/66 7100/80 7100/80AV 8100/100 8100/100AV

the Update Installer will replace the PowerPC Enabler version 1.1.1 with the System 7.5 Update file.

NOTE: These computers are referred to as the “Power Up” line of Power Macintoshes.

= MORE INFORMATION =

If the System 7.5 Update file is removed from the active system folder, for example for testing purposes, the computer will fail to start up either when you choose Restart from the Special menu or when you shut down and then restart your computer. You will be prompted with the following message:

This startup disk will not work on this Macintosh model. Use the latest Installer to update this disk for this model.

To start you computer, you must start up from your System CD-ROM or System Disk Tools disk and reinstall either a new PowerPC Enabler from the startup disk’s System Folder or replace the System 7.5 Update file.

The System 7.5.1 update makes minimal modifications to the Finder file as well.

= Additional query words: 7.5.1 powermac =

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================================================================ Copyright Microsoft Corporation 1997.