wsappx high disk or CPU usage in Windows 11 and 10: what it is and how to fix it

What wsappx is

wsappx isn’t a program you installed. In Task Manager it appears as a Service Host entry, because the services behind it run inside the genuine svchost.exe in C:\Windows\System32. Expand the entry to see which service is busy:

Service	Short name	What Microsoft says it does
AppX Deployment Service	AppXSvc	Deploys Store apps. If it’s disabled, Store apps don’t deploy and “may not function properly”.
Client License Service	ClipSVC	Supports the Microsoft Store. If it’s disabled, apps bought from the Store “don’t behave correctly”.
Windows Store Service	WSService	Found on Windows 10. Store infrastructure support (Microsoft’s documentation is less clear on this one).

Microsoft lists both of the first two services as starting on demand, which is why wsappx appears, works hard for a while, and then goes quiet. A similar-looking file called wsappx.exe in another folder isn’t part of Windows; scan it with Microsoft Defender.

Is it safe, and can you turn it off?

It’s safe, and you shouldn’t turn it off. Ending it in Task Manager stops the services inside it, and if you stop one in the middle of an install the app may be left half updated. The fixes below reduce how often it runs and remove the reasons it gets stuck, without breaking the Store.

Fix 1: Let Store updates finish

1. Open Microsoft Store and select Library in the left-hand bar.
2. Look at the list of updates and downloads. If apps are still downloading, leave the PC on until they complete.
3. Select Get updates to finish any that are waiting, then watch the Disk column in Task Manager.

On a PC with a hard drive rather than an SSD, a big batch of updates after a long break can keep the disk at 100% for several minutes. That’s normal and isn’t something to fix.

Fix 2: Pause automatic app updates

If updates keep starting while you’re working, Microsoft’s steps for the setting are:

1. Open Microsoft Store.
2. Select your Profile picture, then Store Settings (on some versions it’s just Settings).
3. Turn App updates off.

Recent Windows 11 versions have been reported to offer only a pause of one to five weeks here rather than a permanent off switch. Either way, remember to update apps manually from Library now and then, because app updates often carry security fixes.

Fix 3: Find and repair a stuck app

When wsappx stays busy for hours, one app is often failing to install and retrying. To find it, open Event Viewer and go to Applications and Services Logs > Microsoft > Windows > AppXDeployment-Server > Microsoft-Windows-AppXDeploymentServer/Operational. Look for repeated errors that name the same package. In PowerShell, Get-AppxLog shows the same information.

Then open Settings > Apps > Installed apps, select the three dots next to that app, choose Advanced options and try Repair first. If that doesn’t help, use Reset, which also clears the app’s data, so you may need to sign in to it again. If the app isn’t important, uninstalling it stops the loop.

Fix 4: Reset the Microsoft Store

A damaged Store cache can make updates fail and retry. Press Win + R, type wsreset.exe and press Enter. A blank window opens for a short while, then the Store starts on its own. If problems continue, reset the Store app itself from Settings > Apps > Installed apps the same way as in Fix 3. If the Store has vanished completely, see Microsoft Store missing.

Fix 5: Update and repair Windows

Install everything in Settings > Windows Update. Microsoft’s own Store troubleshooting starts there, and in at least one Microsoft Q&A case a Windows update was what stopped wsappx running hot. Then run sfc /scannow from an administrator Command Prompt to repair damaged system files.

If the disk stays at 100% even when wsappx is quiet, the cause is elsewhere; work through our 100% disk usage guide. For other busy service hosts, see svchost.exe netsvcs high CPU.

Fix 6: Turn off Store auto-updates by policy

On Pro, Enterprise and Education editions, administrators can use the Local Group Policy Editor (gpedit.msc). Go to Computer Configuration > Administrative Templates > Windows Components > Store and enable Turn off Automatic Download and Install of updates. Microsoft documents this policy as writing the AutoDownload value under HKLM\Software\Policies\Microsoft\WindowsStore. Home edition has no Group Policy Editor, so use Fix 2 there.

What not to do

• Don’t set the Start value of AppXSvc or ClipSVC to 4 (disabled) in the registry. Microsoft’s own descriptions say Store apps won’t deploy or behave correctly, and Microsoft warns that changing permissions on registry keys can cause serious problems that can’t easily be undone.
• Don’t use the Turn off the Store application policy or its registry value on Home or Pro to stop wsappx. Microsoft says that policy isn’t available on Pro, and blocking the Store also blocks app updates.
• Don’t resize the paging file with a “1.5 times your RAM” rule. It doesn’t stop app installs, and the system-managed setting is the safer default.

Related guides

• 100% disk usage on Windows 11: how to find the cause and fix it
• Microsoft Store missing in Windows 11 or 10? How to get it back
• svchost.exe (netsvcs): what it is and how to fix high CPU, memory or network use
• How to run sfc /scannow in Windows 11 and 10 (and read the results)

Official sources:

• Microsoft Learn: Guidance on disabling system services (AppXSvc and ClipSVC entries)
• Microsoft Support: Turn on automatic app updates
• Microsoft Learn: Troubleshooting packaging, deployment and query of Windows apps