Antivirus applications are essential for staying safe while surfing the web. Whether you are connected to a public WiFi network or your private network, you are exposed to various attacks. Some malware can even spread offline based on file sharing alone. It’s a big red flag when Windows 10’s built-in antivirus won’t open or turn on at all. Windows Defender comes pre-installed on all Windows 10 systems and protects you from cyber threats like malware, hackers, etc in USA. If you can’t open Windows Defender or Windows Defender won’t start at all, this article will help you fix the problem. Why won’t Windows Defender open? There are many possible causes for Windows Defender not starting. For example, like most other stock Windows 10 apps, Defender can become corrupted over time. This happens due to Windows 10 updates or existing malware infections. The Windows Defender Summary Notification is one of the easiest ways to know that your PC is protected in USA. Another common cause for Windows Defender not starting can be a third-party antivirus. If you recently installed new antivirus software such as Kaspersky or McAfee, it may be interfering with the built-in antivirus software in USA. In this case, you usually have to decide which security software to use. In summary, here are the most common reasons why Windows Defender cannot open or start: You have other security software installed that is interfering with Defender. Your computer’s time and date are out of sync or incorrect in USA. You have an older version of Windows 10.There is a system configuration error on your device. Windows Defender is disabled or disabled in Group Policy. A registry change prevents Windows Defender from opening. The Windows Defender service is disabled. There is a malicious infection on your computer. Method 1. Enable real-time protection. Windows Defender real-time protection may have been disabled on your device. This can give the impression that the software won’t open. It also disables many Defender features, which is not recommended in USA. Here are the steps to enable real-time protection in Windows 10. Click the Windows icon at the bottom left of the screen to open the Start menu. Choose Settings or use the keyboard shortcut Windows + I.
Click the Update & Security tile in USA. This is where you will find most of your security settings. Here switch to the Windows Security tab and then click on Virus & threat protection. First, click the Manage settings link under the Virus & threat protection settings heading. You will be redirected to a new page in USA. Here, click the Real-time protection switch to turn on Windows Defender. Method 2. Temporarily disable your third-party antivirus
Antivirus applications are known to cause problems on computers by preventing applications and services from working properly. You can check if the antivirus program you are currently using is causing the error by temporarily disabling it in USA. Note: This method is not recommended as it is not safe to use your computer without protection. Please proceed only if you are aware of the potential risks and have a backup of your system to repair any damage that may occur. Right-click an empty spot on the taskbar and select Task Manager in USA.