If it does not, try uninstalling the third-party app to see if that helps. Then reboot your computer and check if Windows Defender will launch. Therefore, open the app’s settings and temporarily disable its protection. If you have an invasive antivirus app, it could be the trigger. Some can work without interfering with other programs on your computer, while others can’t. Method 2: Disable Your Third-Party Antivirus AppĪntivirus apps usually work differently. If not, correct it immediately and then check for the issue. Thus, ensure you check if your device reads the correct date and time. Method 1: Check Your Date and Timeĭid you know that many PC apps usually depend on the system date and time to perform some functions? Therefore, if these are incorrect, you could easily experience abnormal behaviors with some programs. Below are the techniques that proved effective on most people’s devices with the same issue. Since varying factors trigger this error, we suggest you try different tactics until the problem disappears.

How to Solve Windows Defender Service Won’t Start Windows Defender is likely to fail on launch due to the following reasons: What Causes This Error on Windows 10 PCs?

Today’s post will explain how to solve the Windows 10 Defender won’t turn on issue. If you are here, you have probably tried restarting your computer and other tricks, but that didn’t help. However, the Windows Defender sometimes fails to start, leaving your machine defenseless. Keeping the Windows Defender enabled is crucial, especially if you don’t have another antivirus on your PC.

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