Today about 4 hours ago a friend called me for an upgrade to his system, he has a clinic lab and the lab is about 0.5 KM from my house. previously there was a Windows 7 Operating system on his computer, and the new clinic device's software required Windows 10 or above. So I have installed the Windows 10 operating system on his computer, it's taken about 1.5 hours.
Here are some images where I took shots while installing the operating system.
Microscope
and more devices.