Windows 10: 100% disk i/o usage by windows 10 backup service

On a frequent basis, for some time now, I have had my computers grind to a halt when disk i/o pegs out a 100%. Today, I think I found out the cause. The backup service shows 100% on drive C and then nearly 100% on drive D. When I shut down the backup process, the system i/o dropped to near 0% on both drives, and system returned to full functionality.


How can I limit/throttle the backup process to just a fraction of what it takes now?

:)

 

disk usage at 100

task manager

opera

windows explorer

antimalware service

I have tried all following steps ->

Disable Windows Search

Update your device drivers

Disable SuperFetch service

Disable Antivirus Software temporarily

Change your Google Chrome & Skype settings

Fix your StorAHCI.sys driver

Still when I disable windows update in servicers.msc it turns ON after day or 2..

 

100% disk usage

The most common cause of 100% disk usage appears to be Superfetch and Prefetch, but there are also other causes. You can try disabling both these features and see if it helps.

This article provides steps to disable prefecth and superfetch:

-
How to Fix 100% Disk Usage Error in Windows 10

 

Windows 10 100% disk usage problem

Hi Jae,

Thank you for responding.

I suggest you to try the below steps and check if it helps.

Step 1: First of all, take a note of the processes or applications that is running when the computer runs with high disk usage. Also, we need to find the applications that are running at startup.

Follow the steps to check for the processes under Task Manager:

• Press Ctrl+Shift+Esc to open Task Manager.
  
• Click on Processes tab. Check if any of the processes consumes high memory usage.

Bad sectors on the hard drive can be a cause for high disk usage.

Check which process is utilizing the Hard Disk on Windows 8.1, you may try the following steps.

• Open Task Manager and click on
  Details tab.
• Right click the columns headers and click "Select Columns".
• From the "Select Columns" window, check: I/O Reads, I/O Writes, I/O read bytes, I/O write bytes and then click
  OK.
• Now the columns will be added to the view and will display how much each process is utilizing from the hard disk.
• Sort by I/O read bytes or I/O write bytes by clicking on the column header to see which process is utilizing the Hard Drive most.

Step 2: If you have not run the 'check disk' scan or tried optimizing the drive, follow the steps from this article.

Improve performance by optimizing your drive

(Note: This applies to Windows 10 also.)

Important: While performing check disk on the hard drive, if any bad sectors are found on the hard drive, it tries to repair that sector and any data available on that might be lost.

Hope it helps. Feel free to get back to us for any further queries or issues related to Windows Operating System, we will be happy to help you.

Thank you.