Windows Defender service will not start; how to fix it?

Windows Defender service will not start; how to fix it?

Many users report that Windows Defender service will not start on their PC at all. This can be a huge security risk, and talk about issues with Windows Defender, here are some similar issues that users reported:

Windows Defender service will not start Windows 10, 8.1, 7 – According to users, this issue can appear on all versions of Windows, including Windows 8.1 and 7. Even if you do not use Windows 10, you should know that almost all of our solutions are compatible with the Windows version, so feel free to try it out.

Solution 1 – Disable third-party antivirus solutions

Processing two antivirus solution at the same time led to various technical problems. Use a dedicated software removal tools to remove third-party antivirus file. Restart Windows 10 computer and start up Windows Defender again.

If you do not manage to fix the problem, you can switch to a third-party antivirus solution. There are many antivirus tools great, but we suggest you try BitDefender if you’re looking for a new antivirus.

Solution 2 – Install the latest Windows Update

Sometimes you need to fix problems with Windows Defender services only by installing the latest updates. By keeping your system up to date, you will make sure that everything runs smoothly on your PC. Windows 10 usually required to automatically download updates in the background, but you may be missing one or two updates due to specific bugs.

But, you can anytime check for updates by yourself doing the following:

  1. Press Windows Key + I to open the Settings application.
  2. Now go to the Update & Security section.
  3. Click the Check for updates.

Windows will then check for available updates and download them in the background. After the update is downloaded, restart your PC to install them.
Not being able to start Windows Defender service can be a problem, but we hope you managed to fix it with one of our solutions.

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