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Dism Host Servicing Process: 7 Ways to Reduce High CPU Usage
Disabling BITS and SysMain services is the quickest fix
5 min. read
Published onOctober 7, 2024
published onOctober 7, 2024
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To fix various driver issues on your PC, you will need a dedicated tool to find the freshest and the original drivers. You can use PC HelpSoft Driver Updater to do it in 3 easy steps:
High resource consumption causes the PC to slow down, and one such taskthat often causes this situation is theDism Host Servicing Process (DismHost.exe).
WhileDiskHost.exeis a built-in process related to DISM(Deployment Image Servicing and Management), there’s a lot of confusion about its origin. To clear that,DismHost.exeis completely safe as long as your PC is not infected by a malware disguising the process, which can be verified through a quick scan.
Before we start fixing 100% CPU usage byDism Host Servicing Processin Task Manager, make sure to install all pending Windows updates. Because high CPU usage byDiskHost.execommonly arises when there’s a pending OS update.
How can I fix high CPU usage by Dism Host Servicing Process?
1. Disable the BITS and SysMain services
2. Run the DISM and SFC scans
When your PC hascorrupted system files, certain functions will fail to work properly. In this case, running theDISM(Deployment Imag Servicing and Management)and SFC(System File Checker)scans will replace all such corrupted files with their cached copy, fixing things when theDism Host Servicing Processhas stopped working!
3. Update all the drivers
In a few cases of high disk usage by theDism Host Servicing Process, it was the outdated or corrupt drivers to blame. For one user, a Realtek LAN card turned out to be at fault. So, it’s recommended that youupdate all the drivers.
If Windows can’t find a better version, head to the manufacturer’s website, locate the latest release, and thenmanually install the driver!
4. Run a malware scan
If theDism Host Servicing Processis malware or virus, a full system scan should make that evidently clear. In case Windows Security can’t detect threats, I recommend you use atop-rated antivirus solution for Windowsto run advanced scans!
5. Rename the DismHost file
6. Restore the PC
7. Perform an in-place upgrade
In case an in-place upgrade also fails to resolve theDism Host Servicing Processhigh CPU usage, you will have toreinstall Windows. Remember, since it’s an OS-based conflict, a reinstall is guaranteed to fix things!
Besides, if you repeatedly run into performance-related issues, discover expert tips tomake your PC faster than ever.
If you know of more fixes for the issue, share them with our readers in the comments section.
More about the topics:dism,High CPU usage
Kazim Ali Alvi
Windows Hardware Expert
Kazim has always been fond of technology, be it scrolling through the settings on his iPhone, Android device, or Windows PC. He’s specialized in hardware devices, always ready to remove a screw or two to find out the real cause of a problem.
Long-time Windows user, Kazim is ready to provide a solution for your every software & hardware error on Windows 11, Windows 10 and any previous iteration. He’s also one of our experts in Networking & Security.
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Kazim Ali Alvi
Windows Hardware Expert
Kazim is specialized in hardware devices, always ready to remove a screw or two to find out the real cause of a problem.
