100% CPU Usage After Unplugging AC Power?

Dec 9, 2009

I've had Win7 for a few months now (thanks to MSDN Academic Alliance) but I've just recently started having this problem. I'm running Win7 Professional on my HP HDX16 laptop. My laptop basically runs flawless when plugged into AC power. When I unplug it, however, CPU usage skyrockets to 95%-100%. I managed to look at the task manager one time at noticed that it isn't necessarily one process that is crippling my computer; It's more like 4 or 5 programs that run around 20 CPU and the rest of the processor is used by various other programs. The process hogging programs vary sometimes, but it usually includes audiodg (audio device graph), mcshield (Mcafee), and a few other svchost (usually Win Defender, Win Firewall and AudioEndpointBuilder). I have the IDT HD audio card for those wondering (and all of the latest drivers from HP).

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Hibernate Laptop Powers Off After Unplugging Power

Jan 31, 2013

I put my Windows 7 laptop to hibernate when it is plugged to the power source. When I unplugged the laptop from the power source, the laptop powers off. The next time I turn on the laptop, it is restarted and I see the screen with a message that says Windows was not properly shut down.

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Jul 9, 2010

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Jan 21, 2011

I have a system I am working on that no matter what I do svchost.exe keeps CPU usage on a Quad core hovering around 70-80% and temps in excess of 120F with a ThermalTake BlueOrd cooler installed. It is a custom system I built, with the following specs:

Tech Support Guy System Info Utility version 1.0.0.1
OS Version: Microsoft Windows 7 Professional , 64 bit
Processor: AMD Phenom(tm) 9850 Quad-Core Processor, AMD64 Family 16 Model 2 Stepping 3
Processor Count: 4
RAM: 1791 Mb
Graphics Card: ATI Radeon HD 4200, 256 Mb
Hard Drives: C: Total - 305142 MB, Free - 265597 MB;
Motherboard: ASUSTeK Computer INC., M4A785-M, Rev X.0x, 105424870002755
Antivirus: Microsoft Security Essentials, Updated and Enabled

Usage spikes when Outlook, IE8 and SKype are running after a random time period. I had this system on my bench for 2 weeks straight running benchmark tests and stress test software which all came back "PASS." I scanned for malware, virus, rootkits, etc. to no avail (all clean). Because of the extraordinarily high usage, USB drives are not working properly (take more than 2 hours to come up) and the system is sluggish. This should not be happening on a QuadCore system with a high-performance cooler. I even went so far as to format the HDD and perform a fresh install of everything. It worked perfectly for about 30-min then the BluRay drive stopped recognizing discs, CPU usage spiked up to 70%+ (two cores are at 94-97% usage all the time), and it won't pick up USB devices.

HiJackThis log:

Logfile of Trend Micro HijackThis v2.0.4
Scan saved at 2:32:41 PM, on 1/21/2011
Platform: Windows 7 (WinNT 6.00.3504)
MSIE: Internet Explorer v8.00 (8.00.7600.16700)
Boot mode: Normal

[code].....

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Dec 15, 2012

Obviously there a many, many different home desktop configurations out there. From a top of the line latest desktop setup to one that's 6 or 7 years old but is there an accepted "average" electrical power usage for the "common' home desktop PC? How would one estimate/check an individual desktop PC's energy use (ie. cost per hour or day if left on 24hrs) without having to purchase any expensive watt-o-meter type unit ?

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Lag When Unplugging / Plugging In Laptop

Dec 21, 2009

Ok so before this lag i used windows vista (worked fine) and now i use windows 7 and when i unplug and plug in my computer i get really bad lag and sometimes it disconnects me from my wireless network and reconnects me. Now this happens about 80% of the time and its mostly when im running a game.

Computer Specs:

Computer Name: Compaq Presario CQ50-142US

Mother Board: Winstron Model: 360B

Cpu: Intell(R) Pentium(R) Dual CPU T3200 @ 2.00GHz

Ram: 3072 MBs

Graphics Card: Mobile Intel(R) Express Chipset Family

If you need any more info just leave a response saying so and ill post what i can.

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Mar 28, 2012

Windows 7 x64 pro? the original installed OS on the system? OEM = came pre-installed on system, What is the age of system (hardware)? 2.5 yrs What is the age of OS installation 2.5 yrs (have you re-installed the OS?-NO)

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Apr 4, 2009

Basically it just gives a BSOD every time i unplug the usb.

I have the latest beta drivers downloaded from windows update.

I have a wired control and the xplorer guitar (gh2), both works perfectly, the only trouble is when i unplug.

The BSOD indicates something like irql less or equal 0x000000a

BTW i cant upgrade the driver because it gives the BSOD when disabling it to do the upgrade.

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May 2, 2009

I have downloaded the Windows 7 RC1 ISO and "burnt" it onto a 16GB OCZ Throttle eSATA / USB drive (exactly as in the SevenForums tutorial). I can boot from this drive and install Windows with no problem.

But... I believe the 200MB system partition is somehow being placed on the flash drive, because once I disconnect it and attempt to boot, I get the standard "DISK BOOT FAILURE..." message.

I've followed the suggestions on the "How to avoid 200MB hidden system partition" page (i.e., pre-create the desired partitions on the installation drive rather than installing to unallocated space), but I'm still getting the problem.

The "Windows might create additional partitions..." dialog box popped up once, on my first installation attempt - and I did foolishly click "OK" to it. It hasn't appeared since for me to click "Cancel" to, however much I try deleting and remaking partitions

Has anything changed in RC1 regarding the system partition? Is it more persistent in creating it than it was with the Beta?

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Aug 2, 2012

As i just recovered from a bunch of BSOD's caused by cheap Chinese RAM, i now just got a stop error while unplugging a cheap Chinese capture card.This is not the first time this happened. Here's the most recent BSOD. EasyCAP is JUNK!.zipI really hope this is nothing critical. I'm still licking my wounds from my last Stop Error Misfortune Set.

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May 28, 2012

I use my computer mainly for living room entertainment and I use my HDTV (LG LED 1080p) as my main computer screen. Everything used to work fine but I've recently started having problems with the sound. When I turn the computer on, the sound works perfectly. However, if I close the TV or change the input from my computer to anything else, and then go back to the computer, the sound is gone.I looked through the sound options in the Control panel and noticed that the sound problem comes from my TV speakers (identified as AMD HDMI output) being unplugged. This is obviously impossible because the speakers are in the TV so this must be a Windows problem. This output works perfectly when the sound is on.My TV is connected to my computer through a single HDMI cable for sound and image (ATI Radeon 5700 graphics card and ASUS M4A79XTD EVO motherboard on-board soundcard, both with latest drivers). I use Windows 7 premium home edition 64-bit and I have 4 GB of RAM. i found that either logging off from Windows or restarting the computer will bring the sound back on. Unfortunately, as soon as I turn off the TV or change the input, the sound goes off again.

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May 26, 2011

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i tryed with CD it doesnt work

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Jul 16, 2012

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Jul 15, 2011

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Dec 16, 2012

Dual Core Windows 7 Pro 64 bit Toshiba laptop. My daughter was working on a Power Point project for school. She went to plug in her flash drive and it didn�t seem to load the drive up. She unplugged it and then plugged it back in. We got a BSOD. We restarted it and it BSOD again. I tried some general troubleshooting, including restoring it to a previous version, and now cannot get into Windows at all. Not even in safe mode. Now I am getting multiple BSODs.

Currently I am seeing these BSODs:

I am getting one when just trying to start and run windows I am getting a BSOD about memory management.

If I try to go into safe mode it loads the files and then I get a BSOD regarding the fbwf.sys. Using the Windows 7 disc I have been able to get to the System Recovery Options. It finds my install and then blue screens with IRQL_NOT_LESS_OR_EQUAL or Driver_IRQL_NOT_LESS_OR_EQUAL even before it gets to finding my install.

Other BSODs I know I have seen are regarding the Ntfs.Sys and PAGE_FAULT_IN_NONPAGED_AREA.

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Nov 10, 2012

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Sep 10, 2011

I have a ACER D255 netbook with intel atom N550 (1.5ghz, 1mb L2 cache) 1gb DDR3 memory and 250 gb hdd. lately it has been a tad slow and freezing up will using google chrome. my task manager says right now that CPU usage is 4% but Memory is at 75%, sometimes up to 90%. it also says that i have 89 processes running.

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Jan 8, 2012

I have had my laptop for around a year now, and it's always been pretty fast for a cheapish laptop, It's an advent modena m100 in blue, but recently it has started getting real slow, like my CPU Usage is at 100% all the time and my Physical memory usage is running quite high aswell, without even having any programs open.

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Nov 10, 2012

When I first boot up the machine and start using it (win 7 ultimate 64bit) the memory usage stays arround 40%. If I keep using it, the memory usage will slowly increase until it reaches 99%. If I boot up the machine and just leave it there for a couple of hours, the same happens.I try to restart (via windows), it logs off, shuts down the system, the coolers keep spinning, the motherboard lights are still on, but it doesn't boot up again. It remains like that. I have to restart via reset button or power button.

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Jun 27, 2012

I've done a lot of searches using variations of the above title and came up empty or just plain missed the answer.I'd like to know, if it is not asking too much, the following points:

1. What exactly is the function of Link State Power Management in the Power Options Advanced Settings, PCI Express?

2. What are the implications of using the options available:

a) Off.

b) Maximum power savings.

c) Moderate power savings.

d) Which option is the best selection for my Dell laptop.

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Jun 9, 2011

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Jun 16, 2012

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May 2, 2012

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Jun 24, 2012

If I am surfing the net or looking up something on the net, my computer will almost come to a stop and get very very slow, when I go to the task manager, I find the CPU usage at 100% and just stays there. When I look at the processes there are several that are high (DWM.exe (20-23%, Taskmgr.exe, FireFox.exe

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Dec 24, 2012

I am using windows 7 ( 64 bit ) my cpu usage is now 100 % and memory usage is almost near to 2 GB..I installed Avast months back.now i have newly installed Microsoft Security Essentials ..

1) when i try to uninstall Avast there is no uninstall option even in Add/Remove program it does not show up in list.

2) When i try to end process of Avast it shows me message ."Access Denied " although i am administrator and only single user

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Jun 10, 2009

My Audiodg.exe process is currently using 2,786,070 kB (not just normal bytes, kilobytes) of Ram. 2.66gb+ of Ram! I have searched the web as well as this site for any problems. My audio is working fine though... I have no idea why this using so much ram. Im guessing a memory leak of some kind... I restartand it starts off at a normal pace...

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Mar 17, 2012

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