Unplugging powercord good or bad?

[mobeel]

Hi, to save energy, my father keeps on turning the back outlet switch off from my newly built pc.
I heard that it does save energy, but it could also ruin the computer.

Recently, my computer has been stuck on the motherboard screen while booting.
Also, when my computer turns on, it turns back off, then back on a couple of times then off, and the it finally boots. (all the LEDs/ fan turn off and also my whole computer.

is turning off the powerswitch from the back causing this problem?
if not, what could it be?

thanks and sorry english is not my first language.

 

[jakjawagon]

Are you turning the power off at the outlet before shutting down the computer? If so, that's bad.

If you wait until the computer finishes shutting down before pressing the switch at the outlet, that's fine.

 

[cjl]

As long as the computer is COMPLETELY shut down before you do that, it shouldn't damage anything. It also won't save a significant amount of energy though.