The Windows Security app is a comprehensive security solution integrated into Windows, designed to protect your device and data from various threats. It includes features such as Microsoft Defender Antivirus, Windows Firewall, and Smart App Control, which work together to provide real-time protection against viruses, malware, and other security ...

2021年11月23日 · Once you enter that command restart your computer and check the Windows Defender. If issue persists, check for updates and install any updates available. -Press Windows key + X -Go to Settings -Click Update and Security -Check for Updates and install all updates available. Restart once done and check the Windows Security.

Protect your Android, iPhone, Mac, and Windows devices from threats by installing Microsoft Defender. Download Microsoft Defender on your devices either by: Scanning the following QR code Searching for Microsoft Defender in your app …

This update provides latest updates for Windows Security platform, which is comprised of the Windows Security app and its underlying service. To obtain the current version of Windows Security app, please run powershell command below:

2023年10月27日 · Resetting Windows Security via Settings in Windows 11: 1. Open the Settings app directly or by pressing the Windows key + I. 2. Navigate to "Apps" in the left pane and select "Apps & Features" on the right. 3. Locate "Windows Security" and click on the three dots next to it. 4. Choose "Advanced options" from the context menu. 5.

Windows Security won't take any actions against threats you've allowed. If you have accidentally allowed a threat and want to remove it, select it from the list, then select the Don't allow button. The threat will be removed from the list and Windows Security will once again act on it the next time it sees this threat.

Whether Windows XP, Windows Vista, or Windows 7 is running in a 32-bit or a 64-bit operating environment. Whether you are logged on to Windows as an administrator. Then follow these steps: Download the Microsoft Security Essentials virus and spyware definition update file that is appropriate for your version of Windows:

2024年11月13日 · The 2024-01 Security Update for Windows 10 Version 22H2 for x64-based Systems (KB5034441) will not install on my Windows 10 laptop computer. I get the following message There were some problems installing updates, but we'll try again later. If you keep seeing this and want to search the web or contact support for information, this may help ...

For help resolving performance issues on your Windows PC, see Tips to improve PC performance in Windows. For help freeing up space on your device, see Free up drive space in Windows. Make sure you have the latest updates installed by checking Windows Update. See Windows Update: FAQ. If all else fails, it might be helpful to reset your PC (Fresh ...

Support for Windows 10 will end in October 2025. After October 14, 2025, Microsoft will no longer provide free software updates from Windows Update, technical assistance, or security fixes for Windows 10. Your PC will still work, but we recommend moving to Windows 11. Learn more