Windows 7 Forums
Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.

Windows 7: Complete and unexpected System shutdown

09 Aug 2010   #1

Windows 7 Professional 64 Bit
Complete and unexpected System shutdown

Hello, Iv'e been working on this for a few days now and cant seem to come to any definite diagnosis so I really hope someone here can help!

For the last 2/3 months I have sometimes noticed (but never seen first hand) that if I left my computer on for a few hours that sometimes Id come back and it had turned itself off, and then of course when I went to turn it back on the "Windows has been shut down illegally start in safe mode etc" message came up.

However I ignored it as it wasnt as yet directly effecting me using my PC. Unfortunately 3/4 days ago it shut down whilst I was using it and it has since been a pretty regular occurrence.

There doesn't seem to be a definite pattern to the shut down,

it happens after a while if I play a game, in this case Civ 4.
I has shut down during watching a video, as well as on the internet with many tabs on and music playing. Also it does it if I initiate a virus scan and most interestingly if I run a memory diagnostic it shuts down.

This led me to think it might be a hardware issue, the problem being that

it has never shut down during safe mode and I left it on the BIOS screen for several hours with no shut down. Also I can initiate a virus scan in safe mode and it wont crash.

Ive already performed a system restore

I hope I didnt write too much here, Ive tried to be as specific as possible but Im sure there is stuff Ive missed.

Any ideas?

thanks a lot in advance guys


My System SpecsSystem Spec
09 Aug 2010   #2

Windows 7 ultimate X64

Try pulling all but one memory module and see if there is any effect. If there is a bad module, try and isolate it and remove it. Just a hunch.
My System SpecsSystem Spec
09 Aug 2010   #3

64-bit Windows 8.1 Pro

Navigate to c:/windows/minidump and see if there are any .dmp files .. if so zip them up and attach them to your next post for analysis...
My System SpecsSystem Spec

09 Aug 2010   #4

Windows 7 Professional 64 Bit

Hi Tews!

There are only 3 files in there and theyre dated from the 3rd, long before any of this started to happen Im afraid.
I never used to witness it happen but it does happen now whilst Im using the PC as described in my first post.
Im in safe mode at the minute!
There is no warning with the crashes and no Blue screen, just an instant shut down
My System SpecsSystem Spec
09 Aug 2010   #5

Microsoft Window 7 Professional 32 bit

just upload them anyway. Who know if solving issue with those BSODs will fix your instant shut down that you are suffering at this moment
My System SpecsSystem Spec
09 Aug 2010   #6

Windows 7 Professional 64 Bit

Ok yeah sure if you think it could help!

Thanks again!
My System SpecsSystem Spec
09 Aug 2010   #7

Microsoft Window 7 Professional 32 bit

The DMP is way back in march therefore it's hard to conclude it's the problem you are having at this moment.
One of the DMP blamed the graphic card driver with stop code 116. One generic thing to try is to reinstall the driver, download the newest version of driver and install it on your system.
When upgrading your graphic driver you MUST remove all traces of the current driver. In order to do that we recommend using Guru3D - Driver Sweeper

When it is removed then download and install the fresh copy.

Another thing was blamed in the DMP was RapportPG64.sys. I've just done some research about this (coz it's hard to find), and I found out that it's some kind of malware, virus etc...and there is even an article talking about it and say it cause BSODs
MPECS Inc. Blog: Windows 7 BSODs – RapportPG64.sys is the Culprit
if you still have it on your system, I recommend to remove it.

What antivirus software you are currently using?

Since the symptom seem to be hardware, you should perform some hardware stress test:
H/W Diagnostics:
Please start by running these bootable hardware diagnostics:
Memory Diagnostics (read the details at the link)
HD Diagnostic (read the details at the link)

Also, please run one of these free, independent online malware scans to ensure that your current protection hasn't been compromised: Malware (read the details at the link)

BugCheck 50, {fffff8a0157c0000, 0, fffff88001803dea, 0}

Unable to load image \??\C:\Program Files (x86)\Trusteer\Rapport\bin\RapportPG64.sys, Win32 error 0n2 
*** WARNING: Unable to verify timestamp for RapportPG64.sys
*** ERROR: Module load completed but symbols could not be loaded for RapportPG64.sys

Could not read faulting driver name 
Probably caused by : RapportPG64.sys ( RapportPG64+3dea )

Followup: MachineOwner 
BugCheck 116, {fffffa8003af9380, fffff8800491b6c0, 0, d}

Unable to load image \SystemRoot\system32\DRIVERS\nvlddmkm.sys, Win32 error 0n2 
*** WARNING: Unable to verify timestamp for nvlddmkm.sys
*** ERROR: Module load completed but symbols could not be loaded for nvlddmkm.sys
Probably caused by : nvlddmkm.sys ( nvlddmkm+d06c0 )

Followup: MachineOwner 

My System SpecsSystem Spec
09 Aug 2010   #8

Windows 7 Professional 64 Bit

Ok ill get on that right away, thanks for that.

I am aware of Rapport now, I uninstalled it this morning after it caused a problem with system restoring to certain dates, I also noticed it had no evidence of really protecting my pc any more than my anti virus software does and it used a good 10-15% of CPU sometimes.

I am currently using COMODO, I just switched from avast! However neither of these allowed me to virus scan in safe mode (because when scanning in normal mode the pc shuts down!)
so I went back to AVG and performed a full scan, a few things found and removed but problem not solved.

one quick question as Ive never removed my graphics drivers, driver sweeper is showing 3 Nvidia drivers, chipset, display and physx. Do I want to erase all of them?
My System SpecsSystem Spec
09 Aug 2010   #9

Microsoft Window 7 Professional 32 bit

Just uninstall the display driver and install the new downloaded one.
Also, third party antivirus software are notorious cause for BSODs. I don't know how AVG has been working on your computer but it's just not an exception for that. Stop code 50 is potentially caused by antivirus. I would recommend to uninstall it for now and try Microsoft Security Essential, which is known for BSODs free. Please use it instead because we can eliminate a big potential cause.
AVG is known to cause BSOD, on some systems. I suggest that you uninstall it while trouble shooting using the uninstall tool > Info > Tool (32bit) - Tool (64 bit). If you have AVG Identity Protection installed, uninstall it also >Info > Tool. I recommend that you install MSE and make sure Windows Firewall is turned on.

Please let us know any news. Make sure to run the hardware diagnostic as I listed. For the memory diagnostic test, here is a short version of it in case you don't want to read the whole thing in the link I gave you earlier:
Download a copy of Memtest86 and burn the ISO to a CD using Iso Recorder or another ISO burning program. Boot from the CD, and leave it running for at least 5 or 6 passes.

Let us know if you need help

My System SpecsSystem Spec
09 Aug 2010   #10

Windows 7 Professional 64 Bit

Hey Tuan thanks a lot, youve been super helpful.

Ive replaced the graphics driver, Ive ran memtest86 but it turns off at around 40%. However the shut downs appear to be less frequent than what they were originally, which is odd. It still happens when I play a game, in this case Civ 4, this makes me find it hard to believe that it could be a hardware issue with the RAM as Civ 4 is not a particularly new game and my PC shouldnt be stressed out by anything that game could throw at it.

I dont know.

Thanks again, im going away for a week now but Ill still be able to read anything here, just I wont be with the machine.

My System SpecsSystem Spec

 Complete and unexpected System shutdown

Thread Tools

Similar help and support threads
Thread Forum
Windows 8.1 - Unexpected System Shutdown (attached debug file)
Hi all, Not much information to provide here as to why this is happening. Hoping someone can help. For the past 4 days, my computer has been shutoff when I've arrived in the morning. I dug in and found the 6008 error but the only information is that the system shutdown was unexpected. I...
BSOD Help and Support
Random unexpected system shutdown
Hi there All Wonder if anyone can help i'll paste full sys spec's minidums and evenvwr system logs System Asus Barebones -PUNDIT6-M4A3000E AM3 RS780 SYST REQUIRES UK POWER PLUG L740606 IN 2 99.00 198.00 S Athlon II X4 640 - 3.0 Ghz AM3 CPU, Retail Packaged 2 75.00 150.00 S Corsair...
BSOD Help and Support
BSOD The previous system shutdown was unexpected.
I am getting the above issue which seems to be causing me BSOD. I am not sure how to make make dump files.
BSOD Help and Support
slow system hdd performance after a unexpected shutdown
This is something I have seen occur multiple times in 17 years of using windows, after a unexpected shutdown windows i/o performance slows right down and I still dont have the answer to it. Today I accidently cut the power to my pc, so windows didnt crash it just lost power. Windows took...
BSOD Help and Support
Unexpected shutdown if system service "power" is running
so my computer started unexpectedly shutting down about 60 seconds after loading windows today. No BSOD, no error message, no warning, just a hard shutdown. It happened consistently every time I started the computer, unless I was in safe mode, then I had no issues. So I went into msconfig, and...
BSOD Help and Support
Unexpected system shutdown during clean install
Doing clean install for Windows-7 64bit but over 3/4 of the way through while in "completing installation" phase computer shuts off completely. Before turning off gives error msg "... windows has encountered problem and could not complete the installation..". Have Gigabyte GA-P35-DS3L v2.0...
Installation & Setup

Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd

All times are GMT -5. The time now is 13:13.
Twitter Facebook Google+ Seven Forums iOS App Seven Forums Android App