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There is a lot of confusion and many different sources and items necessary to protect your systems from the vulnerabilities all dubbed "Print NightmarePrintNightmare". The following information explains our recommendations on how you can update your system to reduce the your vulnerability of your system to the "Print NightmarePrintNightmare" exploit.
To start, the simplest solution is to disable the print spooler on all systems that do not need printing and importantly on Active Directory , File only servers, as well as Web Servers.
With that said, there are going to be systems that need to print. The Flow chart below will assist with guiding you through that but here is a break down of those items.
#1 - Ensure the system has Microsoft Windows patch 2021-07 Cumulative Security Update.
#2 - Disable Remove Remote printing via Group Policy at the domain or local policy.
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