Microsoft confirms that there is a problem in the recent security update KB5063878. Specifically, it concerns an error that occurs when performing repairs on applications that use Windows Installer (MSI). According to the official documentation, this can lead to unexpected User Account Control prompts when a user without administrator rights performs an MSI repair. Known packages affected by this include Autodesk AutoCAD and older versions of Office, such as Office Professional Plus 2010.
Microsoft has issued a warning that Windows Server 2025 domain controllers may experience accessibility issues following a restart, causing critical interruptions to services and applications.