Windows Security (Windows Defender Security Center in previous versions of Windows) enables you to scan specific files and folders to make sure they're safe. You'll be notified immediately if any threats are found. To scan specific files or folders, right-click a file or folder, select Show more options, and then select Scan with Microsoft ...

You can also schedule Microsoft Defender Antivirus to scan at a time and frequency that you choose. In the search box on your taskbar, enter Task Scheduler and open the app. In the left pane, expand Task Scheduler Library > Microsoft > Windows, and then scroll down and select the Windows Defender folder.

Microsoft Defender Offline will load and perform a quick scan of your PC in the Windows Recovery Environment. When the scan completes, your PC automatically restarts Start an offline scan Note To see the results of the offline scan, open the Windows Security app on your Windows device and select Protection history.

Learn how you can free up drive space in Windows. Keep your PC running smoothly and up to date by increasing the disk space.

What does this message mean? When Windows sends this notification, select the message or go to Start > Settings > System > Storage > Advanced storage settings > Disks & volumes, then select Properties for the problematic disk to see additional details. For example: There are three types of critical warnings:

If you suspect that your device may have malware you should have Microsoft Defender run a scan. Here's how to do that on Windows, Mac, or Android.

Microsoft Defender Antivirus comes built-in to Windows 10 and Windows 11. You can turn off Microsoft Defender Antivirus if you decide to use a different security product. Caution Your device will be vulnerable to malware if you disable Microsoft Defender Antivirus and don’t have another security product.

Obtener información sobre cómo liberar espacio de la unidad de disco en Windows. Mantener el equipo actualizado y funcionando sin problemas al aumentar el espacio en disco.

Summary The first hours of a newly installed Windows deployment can leave the system vulnerable because of a Microsoft Defender protection gap. This is because the OS installation images may contain outdated antimalware software binaries. The devices on which these deployments are made are inadequately protected until they receive the first antimalware software update. Defender updates also ...

KB5001716: Update for Windows Update Service components Summary This update includes a new user interface (UI) functionality for Windows Update in Windows.