HDDs are running at 100%, unplugging seems to switch the HDD that is malfunctioning

micclear

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Dec 23, 2010
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Hi,

I am having a problem on windows 10 where one of my 4 HDDs is running at 100 percent, causing my whole system to slow to a crawl and requiring a reboot whenever I try to access that drive. I assumed it was the drive dying so I replaced it with a new drive, and this has caused another older drive, which has always worked fine, to now run at max whenever it is accessed, causing the same issues.

I have tried turning off superfetch and windows search, to no avail. I have also turned off all windows notifications.

The hard drives have been multiple sizes, makes etc. Can't see this being a failure of both drives, but you never know.

Any thoughts would be great.

Thanks

Edit: OK, so I am getting the same thing in resource manager, disk E, the suspect drive is at 100% active while the system is basically idle, and the other drives confirm that, all being roughly 0. The only major process is see is system and system32/config/drivers, using about 113,000 bytes. Doesn't seem that much imo. This seems to happen a few minutes after booting up, and closing anything explorer.exe related causes the whole thing to slow right down. For instance, closing task manager won't close it, leaving it hanging until the explorer.exe has stopped working message comes up, then that too crashes.

I will try running crystal disk to check the drives, but it doesn't seem to want to boot right now, probably because the whole system thinks it's bogged down
 
Solution
Hi there micclear,

I would agree with viper666. It may be a good idea to observe Resource Monitor and see whats going on.
Also, you can boot into safe mode. In case the issue persists, it could be hardware related. In case it does not, then it is most probably software related or it is caused by OS services.

I believe it will not hurt to test all your drives, so you can see if they are in a healthy state: http://www.tomshardware.co.uk/forum/282651-32-best-diagnostic-testing-utility

Let us know how this goes,
D_Know_WD :)
Hi there micclear,

I would agree with viper666. It may be a good idea to observe Resource Monitor and see whats going on.
Also, you can boot into safe mode. In case the issue persists, it could be hardware related. In case it does not, then it is most probably software related or it is caused by OS services.

I believe it will not hurt to test all your drives, so you can see if they are in a healthy state: http://www.tomshardware.co.uk/forum/282651-32-best-diagnostic-testing-utility

Let us know how this goes,
D_Know_WD :)
 
Solution

micclear

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Dec 23, 2010
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18,510
Alright I think I figured it out, it was due to the windows 10 Anniversary update. https://www.reddit.com/r/Windows10/comments/4vufpo/windows_10_fully_freezes_after_anniversary_update/ This checklist helped me to fix it, required multiple solutions tho so I am unsure which was the magic bullet. Hope this helps anyone else