FIX: High CPU or DISK Usage issues on Windows 10. (Solved)

In this tutorial you 'll find detailed instructions to resolve the high CPU and Disk usage issues on Windows 10. Many users complains that their Windows 10 computers run slow without an obvious reason and without having any open programs. During this behavior, the Task Manager shows that the disk or the CPU is always running at 100%.


High CPU or DISK Usage issues Windows 10


In this tutorial you will find several methods to solve the High CPU and DISK Usage issues on Windows 10 OS.

HOW TO FIX: High CPU and DISK Usage issues on Windows 10.


Method 1. Scan your computer for viruses.

Important: Many viruses or malicious programs can cause your Hard disk to work at 100%. So, before you continue to troubleshoot the hard disk's 100% usage issue, use this Malware Scan and Removal Guide to check and remove viruses or/and malicious programs that may be running on your computer.


Method 2: Disable Windows notifications.

I have tried this solution several times in Windows 10 systems with successful results, but I haven't test it in Windows 8 or 8.1 systems.


– To disable notifications on Windows 10. (For Windows 8, 8.1 instructions click here).

1. Click on the Windows flag (Start menu) and open Settings.

windows 10 settings

2. At settings window, select System.

windows 10 system


3. Select Notifications & actions at the left and then set the Show me tips about Windows notifications to OFF.


windows 10 disable notifications

4. Close settings window and check if the HDD 100% usage problem persists. If persists, then try to turn off all other notifications.


Method 3. Disable Paging File.

Another method to solve the high Disk or CPU usage problems on Windows 10, is to deactivate the Paging File. To do that:

1. Right click on My PC and select Properties.

2.  Click Advanced system settings on the left.




3. At 'Advanced' tab click Settings at 'Performance' section.

fix High CPU and DISK Usage Windows 10


4. At 'Performance Options' select the Advanced tab and then click Change.

fix windows 10 high usage on disk o CPU


5. Unselect the "Automatically manage paging file size for all drives" option.
6. Select No paging file.
7. Click OK.
8. Restart your computer.

disable paging file windows 10


Method 4. Rebuild Search Index.

– Another solution to resolve the 100% high usage issue on your hard disk, CPU or Memory is to rebuild the Index.

1. Navigate to Windows Control Panel and open Indexing Options.*

* If you don’t see the Indexing Options, set the View (View by) to Small icons.

2. At Indexing Options click Modify.

3. Uncheck Offline Files* and press OK.

4. Then click Advanced.

5. At Troubleshooting section, click the Rebuild button.

index rebuild

6. Press OK to rebuild the Index.

7. Wait until the index rebuilding is completed and then restart your computer.

That’s all! Did it work for you?

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