If you used the Windows Desktop program you need the file ending in .taxyyyy to open in it. The tax files (and PDF files) should be in your Documents then in a Turbo Tax subfolder. If you can't find them do a search for all files ending in .tax or .tax2020 or .tax2019, etc. And check the Recycle Bin. For Windows 10 check the One Drive. Did you make any backups? Like DropBox.
If you don't have the main .tax file you might have one that starts with a Tilde sign ~ like "~your name.tax2020". That file is if your computer crashes or your real file gets lost or deleted or corrupt so you can restore it.
Find your Tax file in Windows
https://ttlc.intuit.com/community/tax-data-file/help/find-your-tax-data-file-tax-file-in-windows/00/...
Did you save your return? In Windows you have to manually save, although it will ask if you want to save when you exit the program or switch to another return.
Try this......start the 2020 program. Then go up to File-Open and see if it finds your file.
See this post (scroll down) he found his files in the Administrator account
https://ttlc.intuit.com/community/taxes/discussion/all-my-turbo-tax-information-is-missing-where-did...
Don't know if this will help any Turbo Tax users but one Quicken user found them......
What I found was that my Quicken Data files ended up in the One-drive Recycle bin. Not sure how, but I found them there. I placed the files back onto the laptop and brought the files into Quicken and now have all my data back.
