To overcome these problems, it is preferred to scan computers online. The software might have some security glitches. The update process is not maintained properly. The antivirus might have been out of date (obsolete).

In this way sometimes the so called computing device turns into a junk box, not letting you carry on with your works, in spite of the fact that antivirus software was pre-installed. In some instances Defender may need you to take some actions such as quarantining or removing the dangerous file or process.To protect the computers from viruses there are a lot of anti-viruses and other software, but it sometimes fails to check the encounter of malware into systems. If Defender finds malware on your device it'll block it, notify you, and try to remove the malware if it can. For more information see How to start a scan for malware in Microsoft Defender What if Defender finds malware? If you're concerned and want to have Microsoft Defender run a scan right now, you can do that by going to the Device protection page from the Microsoft Defender dashboard. If it spots something it will attempt to block it, and alert you so that you can take action if necessary. Microsoft Defender will also run quick scans of your device on a daily basis, in case anything manages to elude the real-time protection. Microsoft Defender's real-time anti-malware protection runs whenever your device is on, keeping an eye out for malicious activity. When you first set-up Microsoft Defender on your device we'll run an initial scan to make sure you're starting off clean. Note: Microsoft Defender currently offers anti-malware only on Windows, Mac, and Android.

Antimalware online scan