Apple twentieth anniversary mac Manual Do Serviço

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Techniques 
for Diagnosing
and Solving
Problems
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2
Release the Space bar when the Extensions Manager control panel opens.
3
Open the Selected Set pop-up menu and choose Mac OS 7.6 Base System. 
This turns off all extensions and control panels except those installed with Mac OS 7.6.
4
Close the Extensions Manager to continue startup.
5
When the computer is ready, try the same actions that caused the problem.
If the problem no longer occurs, you probably have an extension or control panel that doesn’t work
with Mac OS 7.6. Continue with the steps in the next section.
If the problem still occurs, try checking your hard disk for problems with the Disk First Aid utility. You
can find Disk First Aid in the Utilities folder on the CD-ROM disc that contains system software. You
should also check to make sure that your application programs are compatible with Mac OS 7.6. 
If the problem only occurs when using a certain program, that program is probably not compatible.
Check with the program’s manufacturer for information.
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