How to Repair High CPU Usage by LockAppHost.exe on Windows 10 PC

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You know Windows comes with timely updates, and if we are talking about Windows 10, it comes with some amazing features, but it also has some software and hardware issues. So, in this article, we are going to discuss the problem which is known as lockapphost.exe high CPU error which usually occurs in Windows 10.

What causes high CPU usage of LockApphost.exe?

  • Deletion of Lockapphost.exe files accidentally or maliciously.
  • Incomplete installation or improper loading of Windows 10 software.
  • Due to a conflict with another program with the operating system and help files.
  • Damage to registry keys related to Lockapphost.exe file or Windows operating system.
  • Infection by a virus or malware causing damage to the Windows 10 operating system files or Lockapphost.exe file.

How to eliminate the high CPU load from LockAppHost.exe?

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Launch the SFC scanner

  1. Right-click in the Start menu and go to Command Prompt (Admin).
  2. Enter the following line and press Enter: sfc/scannow
  3. Wait for the process to finish (this may take some time).
  4. Reboot your computer and make sure the problem is resolved.

Disabling the Windows 10 lock screen

  1. Launch File Explorer -> go to C:Windows -> SystemApps -> Microsoft.LockApp_cw5n1h2txyewy
  2. Right-click the folder -> select Rename.
  3. Add .bak to the end of the folder name -> press Enter.

Restart the LockAppHost service

  1. Go to Search, type services.MSC and open Tools.
  2. Find the LockAppHost service, right-click it and go to Properties.
  3. Click Stop, then Start again.
  4. Restart your computer and see if LockAppHost continues to consume memory.



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Frequently Asked Questions

  1. Reboot your system.
  2. Stop or restart processes.
  3. Update drivers.
  4. Check for malware.
  5. Power options.
  6. Find specific instructions online.
  7. Reinstall Windows.

The original LockAppHost.exe is a system file and an important part of Windows. It rarely causes problems, but if it starts taking up memory, it's a sign of a problem. The first step is to restart the LockAppHost service, and if that doesn't help, it's worth running an SFC scan to check for corrupt files.

There are many reasons for high CPU load - in some cases surprising. The slow processing speed can either be due to the antivirus program you're using, or to a virus that that program needs to stop. Try running multiple antivirus scans or manually removing the virus.

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  2. How to Repair Avast Service High CPU Usage Problem on Windows PC
  3. What is svchost.exe on Windows? Multiple instances, high CPU, disk usage explained
  4. Repair Runtime Broker (RuntimeBroker.exe) High CPU Usage
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