Apple Mac OS 7.6 - Manual (Page 47)

Step 2: Test individual extensions and control panels
To test an individual extension or control panel for compatibility, follow the
steps below.
1 Start up your computer while holding down the Space bar.
Holding down the Space bar opens the Extensions Manager control panel
during startup.
2 Release the Space bar when the Extensions Manager control panel opens.
3 Turn on the item you want to test by clicking its name to put an X beside it.
4 Close the Extensions Manager to continue startup.
5 Try the same actions that caused the problem.
If the problem does not occur again, then the item is probably compatible
with Mac OS 7.6.
If the problem occurs again, the item is probably incompatible. Open the
Extensions Manager and click the item’s name to remove the X.
6 Repeat steps 1 through 5 for each item you want to test.
Performing a clean installation
This section provides instructions for what is commonly called a “clean”
installation of system software.
A normal system software installation replaces changed system files and
adds new ones, but leaves other files alone. When you install system software
using a “clean” installation, the Installer creates a new System Folder on your
hard disk. The old System Folder is renamed Previous System Folder. Since
your computer has a new System Folder, you must reinstall any third-party
extensions and control panels after a clean installation. This can be a
complicated procedure, but if you are experiencing problems or your
computer seems slow, performing a clean installation may help.
47 Troubleshooting