If all is well, it should display the post screen or manufacturer logo on the monitor and then move on to Windows installation or the login screen.
Step 1: Switch on the power supply and press the Power button on the front. If all is well, it should display the post screen or manufacturer logo on the monitor and then move on to Windows installation or the login screen. If it doesn't, however, don't fret. It's not uncommon for PCs to need to reboot a couple of times on their first startup, and some can even take a couple of minutes to boot the first time while they configure memory and other components.