@ btrimarco wrote:
I cannot access my TurboTax Deluxe software due to Error Code 603
I'll tell you something to try first if you're using the Windows version, then how you can call Customer Support, if needed.
- Close TurboTax.
- Right-click on your desktop TurboTax icon, and choose Properties.
- In the Properties popup, go to the Compatibility tab.
- Place a checkmark for "Run this program as administrator."
- Click Apply and OK/Save.
- Launch TurboTax, and see if the problem is still there.
If the problem is still there, Support hours are 5AM-9PM Pacific (8AM-12 Midnight Eastern) 7 days.
You can use this contact form to get an incident number and phone number. Be sure you indicate in the dropdown list that you are using the CD/download version and what OS. For the issue you can say something like error 603 license activation problem without quotes.
https://support.turbotax.intuit.com/contact
