Install Windows Defender Windows 10 ((free)) -

You don’t install Windows Defender (now called Microsoft Defender Antivirus ) separately. It’s built into Windows 10 and installed by default. You only need to enable it if another antivirus is present.

If the software is already on your system but not running, follow these steps to turn it on: install windows defender windows 10

If the Defender binaries are corrupted or missing due to system errors or malware tampering, a repair installation is required. This involves using the System File Checker (SFC) and Deployment Image Servicing and Management (DISM). You don’t install Windows Defender (now called Microsoft

(e.g., McAfee, Norton, Avast):