I purchased this laptop in 2006. It was running on WIndows 7 Ultimate, and, before gifting it to a friend I thought I'd try applying the WIndows 10 upgrade.
I was a little surprised, but the upgrade worked with no issues. The video driver is the generic WIndows driver, and display function is fine. All functions are working; wireless, touchpad, sound, Office 2013 apps, browsers (chrome, firefox), antivirus, etc. There are no resource-intensive apps loaded; not used for gaming; but for Internet access, basic office apps, etc. it's working well.
Totally subjective, but seems a little faster than on Windows 7.