

You can only “roll back” to 10 if you just upgraded from 10 to 11. If you bought something new then you can’t “roll back” to something that was never there.
Also if it’s a newer laptop expect a lot of things to be broken or work poorly. A lot of new hardware has come out post Windows 11.









Most current Gen. thinkpads have fully upgradable ram. The T4XX/14 series had half soldered ram until a year or two ago. SSDs have basically always been replaceable.
They’re also very easy to work on since it’s only a couple of screws and you have full access to the inside of the machine. Those older thinkpads were nightmares if you had to take the whole mobo out. Even MacBooks were easier.