If when you attempt to run a Microsoft Defender scan on your Windows 11 or Windows 10 device, but the AV scan fails and you receive the error code 0x8007139f, then ...
The Windows Defender antivirus program, also known as Windows Security, comes installed with Windows 11/10. It is an antimalware scanning tool that lets you boot and scan from a trusted environment.
Deployment Image Servicing and Management (DISM) is a command-line tool built into Windows 10 that allows network administrators to prepare, modify, and repair system images, including Windows ...