You can start a scan for malware any time you like. Note: Microsoft Defender currently offers anti-malware on Windows, Android, and macOS. If you want a deeper scan, instead of selecting Quick scan in step 3, select Scan options and choose the type of scan you want. For the most complete scan, run Microsoft Defender Offline.

In search on the taskbar, enter Control Panel and select it from the results. Select Programs > Programs and Features. Press and hold (or right-click) on the program you want to remove and select Uninstall or Uninstall / Change. Then follow the directions on the screen. Need more help?

In the Windows Security app on your PC, select Virus & threat protection, or use the following shortcut: Virus & threat protection. Under Current threats you can: Even though Windows Security is turned on and scans your device automatically, you can perform an additional scan whenever you want.

Install and configure antivirus software so that the risk to the domain controller is reduced as much as possible and performance is affected as little as possible. The following list contains recommendations to help you configure and install antivirus software on a Windows Server domain controller.

Use this tool to find and remove specific prevalent threats and reverse the changes that they made (see Covered malware families). For comprehensive malware detection and removal, consider using Windows Defender Offline or Microsoft Safety Scanner.

If you experience frequent game crashes or instability while playing State of Decay 2, Sea of Thieves, or Crackdown 3 on Windows 10, this may mean that your antivirus software is scanning the game. You can set file exclusions to prevent this from happening.

Use the System File Checker tool to repair missing or corrupted system files. When critical Windows system files are missing or corrupted, some Windows features may stop working correctly or Windows may stop responding altogether.

Follow these steps to automatically diagnose and repair Windows security problems by turning on UAC, DEP protection, Windows Firewall, and other Windows security options and features. Select the Download button on this page. In the File Download dialog box, click Run or Open, and then follow the steps in the Windows Security Troubleshooter. Notes:

Solve problems with detecting and removing malware with Windows Security, including incomplete scans, detection errors, and persistent malware.

First, you'll need to download the troubleshooter. Download troubleshooter. If you see the File Download box when you start downloading, select Run or Open. The troubleshooter provides steps for you to follow. If a program isn't listed in the uninstall options, you'll be asked for that program's product code.