Your data is kept separately from the program files. As I said above your tax return data files end in .tax2022, .tax2023, .tax2024 etc. You should be making backups of the .tax files and pdf files. They are in your Documents in a Turbo Tax folder. Or search your computer for all files ending in .tax or .tax2024.
When you start the program if it doesn't open your return you go up to File-Open and it should list your returns. Have you been saving your returns? When you exit Turbo Tax it should ask if you want to save. Or go up to File-Save.
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/...
For 2024 Windows Desktop program the return is saved as filename….
2024 Smith {first name initial} Form 1040 Individual Tax Return.tax2024
