Our company will be upgrading all of our Windows 7 machines to Windows 10 in the coming months. Would like to know what would be the quickest/fastest way to deploy the upgrades to the clients? Also how much time would we be looking at per machine upgrade?

It's hard to estimate how long it will take. While most computers that can run Windows 7 will run Windows 10 there still still could be some driver issues to work through. Another issue could be the software the company uses. If there are issues to work through with software then more time will be needed.

 

In a perfect world I would say it would take about an hour per computer.

There can definitely be driver issues, also application-compatibility issues. Got one here that that was upgraded from 7 to 10. It pops up a window saying "No AMD Graphics Driver is installed" just after booting. The screen looks fine. It's a laptop. Had to take out all the AMD Catalist-related programs.