Struggling with Windows Defender not turning on in Windows 11? Discover proven, step-by-step fixes to restore your security.

Since March 1, 2018, Microsoft announced that it will target disinfection of malicious system optimization software and registry cleaner in anti-virus software "Windows Defender" made by the company.

According to Microsoft, Microsoft Defender can constantly scan for viruses on devices with iOS, Android, and macOS installed in addition to PCs with Windows installed. It also has a function that ...