Microsoft Defender Antivirus is a powerful tool that finds and removes malware from your PC. Here's how to use it in Windows 10 or 11 to scan your PC. Important: Before you use Microsoft Defender Offline, make sure to save any open files and close apps and programs. Open your Windows Security settings.

Select Start > Settings > Update & Security > Windows Security > Virus & threat protection. Under Virus & threat protection settings, select Manage settings. Under Controlled folder access, select Manage Controlled folder access. Switch the Controlled folder access setting to On or Off.

Microsoft Edge. Note : Adobe Flash will no longer be supported after 2020. Microsoft plans to remove Flash from Windows entirely by the end of 2020. Because Flash will no longer be supported after 2020, it is turned off by default in the new Microsoft Edge.

Adobe Flash Player will go out of support by December 31, 2020. For more information, see Adobe Flash end of support on December 31, 2020. Applies to. Summary. This security update resolves vulnerabilities in Adobe Flash Player that is installed on any of the Windows operating systems that are listed in the "Applies to" section.

Security Windows. These are some of the most common ways that your devices can get infected with malware. Spam emails. Malware authors often try to trick you into downloading malicious files. This can be an email with a file attached that tells you it is a receipt for a delivery, a tax refund, or an invoice for a ticket.

Describes how to obtain the latest version of DirectX to enable games and multimedia applications on your system.

To repair the corrupted files manually, view details of the System File Checker process to find the corrupted file, and then manually replace the corrupted file with a known good copy of the file. Windows 8.1 or Windows 8. Windows 10, Windows 7, or Windows Vista. More Information.

Windows 11 Windows 10. File Explorer in Windows 11 helps you get the files you need quickly and easily. To check it out in Windows 11, select it on the taskbar or the Start menu, or press the Windows logo key + E on your keyboard. How to use File Explorer:

Option 1 - Uninstall Microsoft 365 from the Control Panel. Option 2 - Completely uninstall Microsoft 365 with the uninstall support tool. Tip: If you're a small business owner looking for more information on how to get Microsoft 365 set up, visit Small business help & learning.

Screen flickering in Windows 11 is usually caused by a display driver issue or incompatible app. To determine whether a display driver or app is causing the problem, check to see if Task Manager flickers. Then, based on that information, you'll need to update, rollback, or uninstall your display driver or update or uninstall the app.