Resetting Illustrator Preferences made easy!
Now you can reset the Preferences to default from within the application. It is a helpful step to fix performance-related issues and corrupt settings.
Simply perform the following steps:
- [Windows] Go to Edit > Preferences > General or [macOS] Go to Illustrator > Preferences > General
- Click Reset Preferences.
Note: Before you proceed, create a backup copy of your existing preferences file. Preferences will reset only when you restart Illustrator.

Check out the Troubleshooting issues with Illustrator Preferences article more details.
Feedback and questions:
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Regards,
Om
