You should have another conversation with customer support. For one thing, there are no updates for old software, so not sure what you did when you tried to get to those old returns on your old computers. TT does not provide updates for software older than 2020. And.....the first year there was a license key was 2019, and those keys were 14 digits. They were not ever changed to 16 digits. Later tax years---either 2020 or maybe 2021 were 16 digits instead of 14.
If you have a program like Acrobat, you should be able to open your pdf's. Do you have that? Not sure how or even if that would still work on a computer ancient enough to have a 2006 return on the hard drive.
You say you have important reasons for needing those old returns. If the reasons are desperate enough, you can pay the IRS $30 for each tax return going back for as far back as seven year. Transcripts go back about ten years.
You can get a free transcript from the IRS or for a fee of $30, an actual copy of your tax return.
https://www.irs.gov/individuals/get-transcript
https://www.irs.gov/pub/irs-pdf/f4506.pdf
Or...if you only have the tax files (not pdf's) there is a service not affiliated with TurboTax that can print out old returns from the tax files. See taxprinter.com for information. We do not know how expensive it is.
To call TurboTax customer support
https://ttlc.intuit.com/questions/1899263-what-is-the-turbotax-phone-number
Customer support is available from 5 a.m. to 5 p.m. Pacific time Monday-Friday
Some of the other Champs and users here may have some suggestions for you too.
**Disclaimer: Every effort has been made to offer the most correct information possible. The poster disclaims any legal responsibility for the accuracy of the information that is contained in this post.**
