System 7 Finder: Repairing Preferences File that Loses Settings

We have Macintosh computers (PowerBook 170 and IIcx) running System 7. They will not retain default settings, such as changes to Views (like font size) or the Trash warning. After a restart or shut down, the settings return to default. Resetting the PRAM does not help.
It sounds like you might have a corrupted Finder Preferences file, found by following this path:

System Folder
- Preferences
--Finder Preferences

Try the following procedure:
Published Date: Feb 18, 2012