Windows Defender Windows 10 Download |top| 64 Bit Jun 2026

Note: Most users can run this tool directly from the Windows Security app without a download by going to Virus & threat protection > Scan options > Microsoft Defender Offline scan.

If you have a third-party antivirus (like Norton, McAfee, or Avast) installed, Windows Defender will automatically turn itself off. To use Windows Defender, you must uninstall the third-party software. Once the PC restarts, Windows Defender will turn on automatically. windows defender windows 10 download 64 bit

These definitions are usually bundled with standard Windows Updates. If you keep your Windows 10 updated (Settings > Update & Security > Windows Update), Defender will update itself. Note: Most users can run this tool directly

Cloud-delivered Protection: Connects to Microsoft’s global database to identify brand-new threats in seconds. Once the PC restarts, Windows Defender will turn

Offline Scanning: Allows you to run a deep scan before the operating system fully boots, helping to remove stubborn rootkits. Troubleshooting Your Download and Installation

Ransomware Protection: Includes "Controlled Folder Access" to prevent unauthorized apps from encrypting your personal files.