How do I find a laptop that can be upgraded or repaired?

Colin wants a laptop with easily replaceable parts such as memory and hard drives

I just read last week's answer about upgrading or replacing a six-year-old ThinkPad laptop. I want a laptop where I can easily replace components such as memory and hard drives. How does one go about finding out which modern laptops are modifiable by users? Colin

The one-sentence answer is that consumer laptops often can't be modified by users, while business laptops can. There are lots of exceptions, but it's a reasonable rule-of-thumb.