if you are used online nothing needs to be done because the app and data including the tax return file is maintained on Turbotax servers not on your old computer. if you used desktop, then you need to copy xxxx.tax2024 file to your W11 computer. (With a windows computer it would normally be in the Turbotax folder under documents). you may also want to reinstall Turbotax 2024 which you can download from your Turbotax account - under billings and products. install the federal and the any states. then check for updates before trying to open the tax file.
at this time, it would also be advisable to save a copy of your 2024 return as a PDF on your new computer and even another copy on a secondary storage device since drives do go bad. even new ones.
