Which exactly did you purchase for tax year 2023? Was it a CD or was it a Download.
If a CD and you start the installation you cannot download the software. You can only install using one or the other methods, not both.
See this TurboTax support FAQ for installing the software for Windows - https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-refund/install-turbotax-windows/L8el...
And yes you can install the TurboTax software for 2023 on a Windows 10 computer.
