Enable Developer Mode Check App Package Compatibility Check for Trusted Certificates Use PowerShell to Install App Package Update C++ Redistributable and .NET Framework Packages Check App ...

Microsoft now allows enterprise admins to re-enable the MSIX ms-appinstaller protocol handler disabled after Emotet abused it to deliver malicious Windows App Installer packages. App Installer ...

Microsoft had originally reported this problem as a "Windows AppX installer spoofing vulnerability" (CVE-2021-43890) as part of its Dec. 14 "update Tuesday" patch release.

App Installer is a feature only available in Windows 10 that allows users to install and modify .appx or .appxbundle files, used to develop Windows Store apps.

The bug, a Windows AppX Installer spoofing security flaw tracked as CVE-2021-43890, can be exploited remotely by threat actors with low user privileges in high complexity attacks requiring user ...