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Technical Support
Step 1: Frequently Asked Questions

I've lost my serial number! Can you send it to me?

If you've lost your serial number, use our Serial Number Request Form.

Your software is fabulous! I want to buy a copy. How do I do that?

You can purchase our products securely with a credit card or PayPal via your web browser at our web store.

The new version of Default Folder X is telling me I need to upgrade.

Version 5 of Default Folder X is a paid upgrade for users that purchased their licenses before June 1, 2015. You can purchase an upgrade at our web store at For more information, see the additional discussion in the Default Folder X FAQ.

Is there a version of Default Folder X for High Sierra?

We're currently beta testing Default Folder X 5.1.6, which is compatible with the latest High Sierra betas. To get a copy, go to the Beta Testing Page.

My email address changed. How do I keep getting those great update notices from St. Clair Software?

To ensure that you continue to receive update notices after changing your email address, use our Change of Address Form or send mail to Include both your old and new email addresses.

Step 2: Check the documentation and product FAQs

If you haven't already done so, please read the manual or Read Me file that came with your software. Our documentation is fairly complete, and many common issues are covered there.

If you can't find a solution in the documentation, look through our FAQ (Frequently Asked Question) pages for the most up-to-date list of tips and common customer support questions for your product.

Default Folder X FAQ

HistoryHound FAQ

App Tamer FAQ

Jettison FAQ
Step 3: Email Us!
If you don't see an answer to your question in the FAQs, by all means let us know via our Tech Support Form or send an email to Please be as complete as possible in your request - remember that we can't help you if we don't know what's happening!
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