Interrupted installation of VirtualBox

[cdclose]

I was preforming an upgrade to a new version of VirtualBox on windows 7 when I lost power before it completed. Now my system has absolutely no video. I've tried all the video cards including the onboard video card. I've tried reseting the CMOS. I can't get a display to show anything when the PC is turned on. Has anyone run into this or have any clue how to resolve it?

[scottgus1]

Do you get the BIOS screen text & stuff? Or no video at all, like if the monitor is unplugged?

[Petr Vones]

Power supply failure ?

[cdclose]

I don't get the BIOS text or anything. The monitor tells me no signal.

Is there a way to test the power supply to determine if it has failed?

[scottgus1]

Do you see any LEDs or fans running inside the PC?
FWIW, I'd say this kind of disastrous failure during a Virtualbox installation is just a coincidence. You may have to take your PC to a computer repair shop and have them check it out.

[cdclose]

Yes there are LEDs on and I can hear the fan. I was thinking that maybe somehow the install screwed up the video settings but it sounds like this might be coincidental. I'll look more into the power supply.

[mpack]

FWIW, I'd say this kind of disastrous failure during a Virtualbox installation is just a coincidence.

Absolutely, in fact since the disaster immediately followed a power failure I do wonder why suspicion fell on VirtualBox rather than the power failure. I would suspect a power spike zapping the electronics (I advise investing in a good quality surge suppressor to protect all modern electronics).

I suppose it's another symptom of the feeling that because VirtualBox simulates hardware, that means it must have all kinds of magic voodoo powers over real hardware. Unfortunately not true.