mum files are simple XML files containing information about the update (KB numer, language requirements, restart after installation required and so on – see the screenshot below).
mum may be found after installing an update with the folger C:\Windows\servicing\Packages\. mum files (mum stands for Microsoft Update Manifest) shipped whithin a. Sometime a KB article mentions that the update is uninstallable ( see).Ĭontrolling whether an update is permanent or removable is done within. msu file, while ordinary update packages are quoted as 'removable'. Microsoft declares such updates as 'permanent' within the. Servicing Stack updates are mandatory to install further updates – also installer updates are uninstallable. Some updates are essentials for Windows and are integrated deeply into the system. Why and how Microsoft makes updates uninstallable?
