We need to have proper and correct drivers installed for every hardware device on the PC. Do you see yellow or red sign (exclamation, question mark) next to any device in the device manager? This implies driver for specific device is either missing, corrupt or disabled. You can right click
View all computer devices: alternative Device Manager
Ideally, one can see all devices on the computer using Device Manager. However, the tree structure and lot of clicking can be little tough to view all devices in a quick glance. Making things easy and quick is alternative Device Manager utility "DevManView". It shows device manager
