Just hope they would fix the search in outlook, sometime that can be a problem and should be more companies that will make an addon for searching, they they'd be millionaires! Yup no need to use Dinosaur Windows 7 that will be going away and if you are one who upgraded from 7 to 10, that's like putting a race car shell on a pinto, Cheap skate!
If you are thinking about a laptop, make sure you go with an SSD hard drive. Do not get fooled into buying any CPU lower than a 6th generation processor, buying one with an SATA drive, or buying refurbished. SATA drives has moving parts and they do not make hard drives like they used to.
This will help performance and you want to get a laptop with 8GB of ram and at least 256GB or higher since Windows will eat up about 20GB and if you get a 128GB you might fill that up. You will want to look at the Intel i3 processor and avoid Celeron ones.
Average life in a computer is 2-5 years and the software is what makes you upgrade your machine or want to do more with the system. Anyone can buy a new PC, but the key is the configuration and how it is setup to run better.