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Are you sure the files are gone? If you reinstalled TurboTax after the operating system was restored, it will not find your previously saved tax data files automatically. When you start TurboTax you have to click "Find a Tax File" and navigate to the tax data file that you want to open.
The default location for TurboTax files is the TurboTax folder, but you could have saved them somewhere else. If you are not sure where your saved 2021 tax data files are, search your entire hard drive for *.tax2021. Also look in the Recycle Bin.
If you are using the CD/Download TurboTax software, the only copies of your tax data files are on your own computer, and any backup copies that you made. TurboTax does not have copies of your tax data files.
