https://www.quikbooksdownload.com/

You can visit this page if you are searching for OS requirements for Quickbooks downloads.

QuickBooks Desktop 2022 R3 and later require Windows 11 64-bit. It is natively installed on all 64-bit editions of Windows 10 The Microsoft Windows 8.1 operating system will no longer receive security updates and support after January 10, 2023. In order to maintain the security of your data, you must upgrade your operating system before installing QuickBooks.