jfisherf,
The following is the path specified on the helpx page for Mac OS; the bits in < > are the changeable ones specific for your computer setup; the <version number> is the two digit numbering, not the CC<year>, currently it is year + 4, so CC2020 is 24).
|
|
<OSDisk>/Users/<username>/Library/Preferences/Adobe Illustrator <version number> Settings/en_US*/Adobe Illustrator Prefs
|
And further:
If you cannot locate the preferences file, use your operating system’s Find command, and search for AIPrefs (Windows) or Adobe Illustrator Prefs (macOS).
Especially if you have customized preferences that you wish to return to if the unreversing fail in the first go, it is advisable to copy the Adobe Illustrator Prefs file to a known place easy to find: in this way you can always move it back and start over in a new go.
Otherwise, especially if you have default preferences, you can follow this from the helpx page:
Press and hold Alt+Control+Shift (Windows) or Option+Command+Shift (macOS) as you start Illustrator. The new preferences files are created the next time you start Illustrator.
Concerning the use of Notepad, just select the Adobe Illustrator Prefs file and choose to open it with Notepad or another similar application, then make the search and changes and save.
I hope you will share your findings.