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Power outage with multiple programs running.


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#1 darryl 1

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Posted 07 June 2011 - 04:06 PM

Aside from the surge itself, what other negative effects could arise from experiencing an outage while multiple programs are open and running? For example, if I lost power while regedit was open, could it change or possibly cause damage the registry itself?

The machine in question is currently running Win 7 SP1 64-bit.

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#2 Allan

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Posted 07 June 2011 - 04:08 PM

Not likely. You might lose data that wasn't saved to the hd, there may be some lost chains on the hd, but other than potential hardware issues it's unlikely any software was effected. You should run checkdisk though:

Right-click on a command prompt icon and open as administrator. In the command prompt window type:chkdsk /r (then press ENTER). You'll be told the disk is in use and asked if you want to run checkdisk on the next boot. Say yes, exit the command prompt window, and reboot.

#3 keyboardNinja

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Posted 07 June 2011 - 04:39 PM

+1 to what Allan said.

If you have the $$, you might look into getting a UPS (Uninterruptible power supply): http://www.newegg.com/Store/SubCategory.aspx?SubCategory=72&name=UPS

Most come with surge protection and battery backup. Depending on the size of the machine, the corresponding power requirements, and the number of peripherals plugged in, you can potentially run a desktop computer and monitor about 10-20 minutes (give or take) on the battery backup.

On a laptop, a power outage isn't a big deal, but things are different if you use a desktop. I bought UPS's for both my desktop and server.
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#4 darryl 1

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Posted 23 June 2011 - 12:50 PM

Not likely. You might lose data that wasn't saved to the hd, there may be some lost chains on the hd, but other than potential hardware issues it's unlikely any software was effected. You should run checkdisk though:

Right-click on a command prompt icon and open as administrator. In the command prompt window type:chkdsk /r (then press ENTER). You'll be told the disk is in use and asked if you want to run checkdisk on the next boot. Say yes, exit the command prompt window, and reboot.



Good to hear. I'll definitely try running a chkdsk though. How long does one normally take?

+1 to what Allan said.

If you have the $$, you might look into getting a UPS (Uninterruptible power supply): http://www.newegg.com/Store/SubCategory.aspx?SubCategory=72&name=UPS

Most come with surge protection and battery backup. Depending on the size of the machine, the corresponding power requirements, and the number of peripherals plugged in, you can potentially run a desktop computer and monitor about 10-20 minutes (give or take) on the battery backup.

On a laptop, a power outage isn't a big deal, but things are different if you use a desktop. I bought UPS's for both my desktop and server.


Thanks! I'll certainly look into it. It's probably about time I switched anyways, considering I've been using the same cheap surge protector for several years now.

#5 coxchris

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Posted 25 June 2011 - 12:38 PM

Chkdsk /r usually takes a hour or so it depends on how much you have on your hard drive, that switch /r will recover any information in the bad blocks.

Microsoft Office and Open Office might recover the documents when you have a sudden power outage.

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#6 keyboardNinja

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Posted 25 June 2011 - 04:22 PM

Yeah, recovering documents is possible, but if something important like Windows Update is running and the power goes out, you can bork a system pretty good.
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#7 coxchris

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Posted 26 June 2011 - 01:11 PM

Yeah, recovering documents is possible, but if something important like Windows Update is running and the power goes out, you can bork a system pretty good.


Is it possible to run System Restore after that if that happens while running windows update. When the power restore I didn't have the computer for 2 minutes because of the PSU wouldn't turn on (this happen a few weeks ago) Maybe it was recovering from a under voltage

Edited by coxchris, 26 June 2011 - 01:17 PM.

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