How to install macOS 10.15 on my MacBook Pro

sarh162 wrote:

I am trying to install Microsoft update 10.15

Your post isn't that clear, but if I may hazard a guess- you want assistance upgrading macOS (the operating system your Mac uses) to 10.15? Including more information such as answers to the questions below may help you get an answer.

What happens when you go to System Preferences > Software Update? Is your computer compatible with the update you want?

Is there a reason you want 10.15? You should be able to install Windows with Boot Camp Assistant on your current version.