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Windows 10's Famous 100% Disk Usage

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OP said his pc is brand new. you believe its a hardware issue? reinstall it once more, it is guranteed to fix everything if done enough times. he didnt drop or spill juice on it so hardware issue is unlikely

Dude, seriously, read the thread; then if you still have grounds to doubt the diagnosis then at least you can argue from an informed position and come up with some specific reasons that coincide with the available evidence for your logic.

reinstall it once more, it is guranteed to fix everything if done enough times.

I'm not sure I believed that even in the days of Win9x. These days it makes no logical sense (the idea that clean installing more than once has any more value than a single clean install).
 
OP said his pc is brand new. you believe its a hardware issue? reinstall it once more, it is guranteed to fix everything if done enough times. he didnt drop or spill juice on it so hardware issue is unlikely

No, sorry, just because it's a new build doesn't mean the hardware is good. And even if the hardware was good out of the box, doesn't mean the user didn't break it somehow. Static zapping a part, over-bending a SATA cable, forcing a plug in the wrong way, these things all happen.

OP said "I just bought 3 weeks ago". Could mean the whole PC, could mean just the HDD! I've gotten brand-new HDDs that were bad. It happens. Reinstalling Windows is not the cure-all you suggest it is.

I highly recommend educating yourself a bit more before you start dispensing advice, please.
 
I applied for RMA for my HDD and I checked it with many HDD Diagnostic softwares including WD Diagnostics Tool and found a few bad sectors which maybe causing Disk Usage 100% usage. The thing is my OS is suddenly corrupted without any reason. Maybe Windows 10 don't like bad Hard Drives at all, LOL. Even the Wiindows Event Viewe showed some disk errors. Thank you all for the help. 🙂


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I have recently encountered this issue on three machines - one SSD and two HDDs. SMART and scans confirm no issues, but they will often just take a complete dump with 100% disk usage and I can't figure it out. Most often, there seems to be activity related to either svchost or Defender, but I can't figure out how to isolate or control them specifically.
 
I have recently encountered this issue on three machines - one SSD and two HDDs. SMART and scans confirm no issues, but they will often just take a complete dump with 100% disk usage and I can't figure it out. Most often, there seems to be activity related to either svchost or Defender, but I can't figure out how to isolate or control them specifically.

I had a 'WD Caviar Blue' 1TB HDD where I installed Windows 10 on. I faced Disk Usage issues severly that even my mouse pointer lags (sometimes). So, after some research, I found out that it was my HDD issue with bad sectors. I checked Windows Event Viewer and seen many Hard Disk errors and also SMART. So, I replaced my HDD with the new ones and the issue was gone! No full disk usage and everything was working fine. But, it got 100% at Windows startup and I fixed it by disabling 'Windows Search' and 'Superfetch' services. Haven't faced any issue with my Hard Disk now.
 
I have the EXACT same problem as the original poster, right down to the error logs in the event viewer saying my disk has bad blocks, even have the same exact motherboard (ASUS Maximus VIII Ranger). Well the problem has nothing to do with my disk at all because when I disable the audio services (Audiosrv and AudioEndpointBuilder) in my task manager, the problem is 100% cured, though now I have no audio.

Currently updating as many audio and motherboard drivers as possible to try to fix it.
 
I'd also suggest a move to a SSD, Windows 10 works fine on a HDD but it does so begrudgingly. ~128GB SSD plus replacement 1TB HDD should be a good compromise.
 
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