What type of laptop should I buy?

I've had a Lenovo G570 for six years and it is finally starting to give it out. I might I try and buy a replacement battery but I'm also looking into buying a new one. Should I get an Apple Laptop or Windows Laptop? As secretery, I take notes in meetings that last over an hour.

Well kinda depends… Since you were using an windows OS based system and I gather the programs as well… And I gather the other computers in your company are windows based ( program wise )… Then I would stick with windows based computers…

Windows every time - always try for a 9 cell battery as they last longer

Take a look at the Surface Book or the Surface Pro 4.