Windows Defender Antivirus helps protect your PC against malware (malicious software) like viruses, spyware, and other potentially unwanted software. Malware can infect your PC without your knowledge: it might install itself from an email message, when you connect to the Internet, or when you install certain apps using a USB flash drive, CD, DVD, or other removable media. Some malware can also be programmed to run at unexpected times, not only when it’s installed.
Windows Defender Antivirus is included with Windows and helps keep malware from infecting your PC in two ways:
Windows Defender Antivirus regularly scans your device to help keep it safe. Windows tries to do this while you are not using your device so it doesn’t interfere with your work. You can also schedule Windows Defender Antivirus to scan at a time and frequency that you choose.
This tutorial will show you how to schedule a scan in Windows Defender Antivirus for when you want in Windows 10.