- The Basics
- . System components can
become damaged or corrupt. The System File, Finder,
Chooser, and their associated preference files are most
- . Resources (special
capabilities or processes) are installed into the System
File (such as a resource for a PCI network card - to
enable access to a new port added with a Nubus or PCI
- . If the hard drive
directory is damaged, as a system is reinstalled, the
System File, Finder, or other components can be
- . Some virus detection
software can interfere with a system reinstall. The
System File, Finder, or other components can be corrupted
- The Rules
- . Keep your System disks
or CDs safe - don't loan them out, keep them with your
- . SAFETY FIRST - Before
installing, updating, or reinstalling a System, check
your hard drive with a utility (if problems are found -
run the utility until it reports no problems found -
crosscheck with another utility). Startup with a base
system or with extensions off (shift key pressed during
- . Corrupt System Files
can cause startup problems, display anomalies, and
interupt process such as saving, opening and printing.
These errors can be random or repeatable, and manifest as
error messages, bombs or freezes.
- Finding the Damaged File
- . Process of Elimination
- Start with a different System (on a Zip, CD or HD) if
the problem is gone, chances are the System is
- . Disinfectant v3.71
(ftp://ftp.acns.nwu.edu/pub/disinfectant/ &endash; or
online services) (free) is a virus protection utility
that can find some damaged System Files. NOTE:
Disinfectant is no longer being updated.
- . Other virus utilities
may find the damaged file.
- . Norton Disk Doctor
v4.0 (PPC only - v3.53 for 68xxx Macs) (www.symantec.com)
($100) occasionally will find damaged Preference
- . Conflict Catcher v8.03
($80) has a routine to test System Components and
- . TechTool v1.18
(free) checks System Components.
- . TechTool Pro v2.11
($150) may be able to find damage.
- . MacMedic and Help!
from Total Recall (www.recallusa.com)
($150) can often find damaged files.
- . HINT: Some of the
utilities will report a damaged System File when a
resource has been added and does not conform to the file
information that they use for comparison.
- When it's not a damaged System File
- . Allocate more memory
to the problem application.
- . Allocate more memory
to your System, using Conflict Catcher or one of the
- . Look for an extensions
- . Delete the affected
program's Preference File.
- Additional NOTES
- . Having a stuffed
(using Stuffit Deluxe) copy of your System Folder, or
just specific components like the
. System File, Finder. and
Chooser, makes the task of replacement easy. Just unstuff
the System Folder or the individual pieces, move the
current version into a different folder and place the
unstuffed copies into the System Folder. Restart the