Do you have the CD or did you install it from the Download? You probably have to call in and ask for the Windows download. If you have the CD you can try to install it on the Windows computer.
How to contact Turbo Tax
https://ttlc.intuit.com/community/using-turbotax/help/how-do-i-contact-turbotax/00/26991
Did you start a 2022 return on the Mac? You will have to copy the .tax2022 data file to the Windows computer using a usb flash drive. The same file works on both Mac and Windows. See this article on how to move your tax return to another computer…….
https://ttlc.intuit.com/community/tax-data-file/help/how-do-i-move-my-tax-data-file-to-another-compu...
After you get the program installed or reinstalled the first thing to do before you open your tax return is to update the program and install any state programs you had. Then open your file. So you first might need to start a fake return to be able to download the state program (go to FILE - NEW). Enter some basic information, then go to the state tab and download the state program. Then try to open your existing return, go to FILE - OPEN
