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: slow system hdd performance after a unexpected shutdown

05 Mar 2012   #1
chrysalis

windows 8.1 Pro x64
 
 
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 about twice as long to boot.
After it had booted the system hdd was very busy doing I dont know why (wasnt superfetch or virus scanning). The i/o was used by the system process.
Outlook took a looooong time to open. it then also took a very long time to close deleting the deleted emails which are usually way faster.
Internet explorer took about 2 minutes to restore crashed tabs which was massive disk i/o.
Opening tiny apps where the hdd light either flashes very briefly or doesnt come on at all have a noticeable 1-2 sec delay with the light on solid.

I expect after a manual defrag things will be back to normal.

Dos all the prefetch data get trashed on a unexpected shutdown or something?


My System SpecsSystem Spec
.
05 Mar 2012   #2
Vir Gnarus

Microsoft Community Contributor Award Recipient

Windows 7 64-bit
 
 

In Process Explorer, when you dbl-click the System process as it's generating heavy I/O, can you state the start address of the highest-running thread? You won't be able to access the thread's stack, but the start address might be enough to determine what's going on.

Otherwise, if you do not see System running much but instead see heavy activity on Interrupts then you know that an interrupt storm is occurring, which means a device is flooding your system with continual interrupts or a repeated interrupt that is constantly attempting service.
My System SpecsSystem Spec
05 Mar 2012   #3
writhziden

Windows 7 Home Premium 64 Bit
 
 

I would also recommend Disk Check with both boxes checked for HDDs and with Automatically fix file system errors checked for SSDs. NTFS fixes file system errors and allocates around bad sectors on the fly most of the time, but when it fails, Windows will start to suffer and you may find in your Event Viewer logs that you are being asked to run a disk check. Most people do not check the Event Viewer logs and are not aware of this behavior. This can result in the high I/O problems you are having.
My System SpecsSystem Spec
.

Reply

 slow system hdd performance after a unexpected shutdown




Thread Tools




Similar help and support threads
Thread Forum
Windows 7 Slow Performance After System Repair
Recently, my computer crashed and kept receiving the BSOD Unmountable Boot Volumr error. All that I could do was do a System Repair, which fixed the BSOD error, but now, when I start windows normally, everything is really slow. Trying to open a program either takes forever or simply doesn't open,...
General Discussion
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
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...
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
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 21:43.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App