If you are just trying to deal with a slow machine in the office, there is an alternative that you should consider.
I still meet people who dislike Windows 10, but hating an OS is a pointless exercise. Most of the time this is down to a lack of time spent with or knowledge of, the OS in question. Sometimes it’s from a general dislike of change. Using technology and disliking change is never going to work.
The title might suggest that we’re a little behind the curve with this, but there’s a very good reason for asking this question now