Mark XB

I have installed Vista Business 64 bit on a Gigabyte X570S gamimg X board with Ryzen 9 5900. The mb has a PS/2 port. The install went successfully to a 1.8TB seagate hard drive that had been formatted NTFS by W11. The W11 on an NVMe drive was untouched, since Vista does not know its there. I choose which system to boot with the F12 at power on. Each OS does not appear to interfere with the other. I can write to the 1.8T hard drive friom W11. During installation there were some 1 minute type waits. First when the blue-green screen appears before anything else. Then another minute wait after selecting install. I did not have to do anything to the already formatted disk. Then another minute for the first 1% to be unpacked. I did have to use a DVD to install, since when I first tried it with a Rufus USB install it wanted a driver for the DVD. Fortunately when it was using the DVD to install it was not silly enough to insist on a DVD driver. No blue screens of death. The sound worked perfectly. But I have no USB, and no mouse, and no network yet. Graphics card is Nvidia GT730. What I do have is an MSI B450 (with PS/2) and another Gigabyte B450 (no PS/2) chipset AM4 boards that have W7x64 drivers available. So I should be able to install W7 and then have available Win7 drivers to suit this B450 hardware. But what I do not know how to do is install non Vista drivers, typically from W7 into Vista. There are quite a lot of old drections on how to do this, but I am a bit lost and have had no success yet. So, if someone can let me know how they have done it that would be most appreciated. Cheers, Mark, Nov 2022.