10 If critical updates are deployed during working time, itâs likely that the user does something, which could impede the update process. The test covered the following four barriers: the unpatched application was running, a browser was opened, the internet connection was unavailable and another setup was running. patch management solution consists of network agents on the client machines, which report the installed applications to the central management console. From the management console the system administrator sees all outdated systems and can schedule the installation of updates.