Q:
Computer restarting randomly
Unfortuantely, yes it is a problem with your system. If your system shuts down without warning, your have a serious fault outwith the game. It is merely a coincidence that this happens with GW2. Because GW2 “stresses” a system its played on, any inherant faults (even minor ones) will become apparent.
If the system is recovering and giving you a “power surge” warning its likely that your power supply unit is starting to fail. I would STRONGLY suggest that you test the PSU with a DMM tester kit. If you are not comfortable with that or unsure on how to do so then take the system to a qualified outlet for PC repairs and have them check the system for you.
There are other causes for a surge issue, but they are all hardware related. So my advice stands. Have the system tested. Or it could well go “pop” and become inoperable.
(edited by Lexandro.1456)