If your system fan often reaches its maximum speed, it shows that your CPU 100%.
At the same time, your setup may be slower.
This is annoying, especially if you don’t actually do anything.
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Here are 8 solutions, clickMiniToolto get more information.
The CPU (central processing unit) is your computers brain, which is also known as the processor.
Then, the speed of your setup will become slower.

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Why is CPU usage high?
Here are 5 main reasons for this situation.
Reasons for High CPU Usage
1.

Sometimes this process is associated with malware, but it is a legal system-critical Windows process.
However, sometimes it will go out of control.
On the other hand, a virus also can cause high CPU usage.

Thus, its a reason for high CPU usage.
Some users report that they receive the Windows 11 Pro 23H2 error 0x00000709 when connecting the shared printer.
Here are the fixes.
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you’re free to openTask Managerto check it.
Here is how to fix the CPU 100%:
Step 1:Search forServicesand open it.
Step 2:In the window, findApplication Managementand right-click it.

After you do this operation, the high CPU usage will become lower.
If not, it’s possible for you to try the next solution.
Maybe there is another system process that makes WMI provider host keep busy, resulting in high CPU usage.

Here is how to fix CPU 100%.
Step 1:Right-click theStartbutton and selectEvent Viewerto open it.
Step 2:ChooseApplications and Service Logsin the left and chooseMicrosoft.

Then clickWindows,WMI-Activity, andOperationalsuccessively to open them.
Step 3:Now you should find recent Error entries by scrolling through the list of operational events.
For each Error, identify the ClientProcessId.

Here is how to fix the 100% CPU usage issue.
Step 1:Search forTask Managerand open it.
Now, see if the CPU usage is still at 100% after you do the above operations.
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If not, this issue has been resolved.
If the issue persists, try the next solution.
In this tutorial, we will show you how to configure Windows to auto restart after a power failure.

Now, keep on your reading.
So just uninstall the third-party antivirus software if it does harm to your CPU.
Additionally, the viruses on your PC can cause the 100% CPU usage issue.

If you find viruses after scanning your PC, you gotta delete them immediately.
If you dont find viruses, you could try the next solution.
Solution 5: Reset Your Power Plan
Power Options has a significant impact on your PCs performance.

The steps to fix high CPU usage are as follows.
Step 1:ChooseHardware and Soundafter you launchControl Panel, and clickPower Options.
Step 2:Then chooseBalancedif your setup is onPower saver.
Step 3:Then clickChange plan settingsthat is next to the Balanced.
Step 4:Now, you just need to clickRestore defaultsettings for this planand clickOKto make the changes.
Step 1:Press theWindows logokey and theRkey at the same time to open theRundialog.
Step 4:Right-click theStartentry on the right side of the pane and selectModify…..
Step 5:Then change the Value data to 4 and clickOKto save the change.
After the change, some features of your Cortana will be affected.
If you often use it, this option might not be suitable for you.
Then it’s possible for you to verify if this annoying issue remains.
If not, you have resolved this issue successfully.
Step 2:Then chooseSystemand clickNotifications & actionson the left side of the pane.
But resetting your gear may cause your important files and data loss.
Thus, you had better back up your important files in advance.
Next I will introduce software for you to back up files.
Once a disaster occurs, you are able to restore data with a copy of the backup.
Its easy to use MiniTool Media Builder and MiniTool PXE Boot Tool to maintain hard drives.
And it is compatible with Windows 7/8/8.1/10 and Windows Servers.
you’re free to download MiniTool ShadowMaker Trial to back up files and keep them safe.
It can be used for free within 30 days or you could choose topurchase an advanced one.