I don't own a laptop. My wife's laptop is fiercely guarded and off limits. 'Everything works. Don't touch it. You'll break it'.
I resurrected a Sony Vaio (colourful pink) that was my daughter's 18th birthday present and is 12 years old. Battery dead but works on mains power. Windows 7. Disk sounds like Concorde taking off.
Installed Linux Mint. Works fine. Less disk access. Still slightly sluggish but perfectly fine for my Windows to Linux demo.
Still think there's an opportunity here.