If the laptop has a DVD drive, it's very easy to install an OS and you can get a cheap Win7 and upgrade to 10 for free.
If you want to install off a usb key, it gets potentially very irritating with Win7 (might have to bake your usb chipset drivers into the .iso) but I don't know if going straight for 10 improves things...
Ah that's good to know, I spend ages trying to figure out the error when installing win7 with a USB3 chipset, as the error text says something completely unrelated! There are tools to fix it but it's another layer of complexity and a lot of time.
Depends.
If the laptop has a DVD drive, it's very easy to install an OS and you can get a cheap Win7 and upgrade to 10 for free.
If you want to install off a usb key, it gets potentially very irritating with Win7 (might have to bake your usb chipset drivers into the .iso) but I don't know if going straight for 10 improves things...