KB4022723 for 1607 was released yesterday and is only available via the Catalog: https://support.microsoft.com/en-us/help/4022723/windows-10-update-kb4022723
From Microsoft IE Support Engineer: “KB4022723 is provided as an alternative for impacted customers who must print from IE that is safer than uninstalling the June 2017 security rollup. This alternative method removes only a single security update from the June release that is causing the printing issue, while keeping all the rest of the June security protections in place.”
After installing KB4022715 (Win10 1607) or KB4022725 (Win10 1703) or KB4022719 (Win7) (released by Microsoft on 6/13/17), which brings Internet Explorer to 11.0.043, CRM 2011 and Dynamics 365 (2016) users receive a “404- File or directory not found” when attempting to PRINT a Record (Contact, Report, etc.) to a physical printer or to a PDF. The Print Preview window DOES properly show what will be printed – but the physical printout or PDF will show “404 – File or directory not found.”
Uninstalling the Updates listed above, which rolls Internet Explorer back to the previously installed version, immediately resolves the issue.
This is not a good solution as the above mentioned Updates contain fixes for many other things – beyond just updating Internet Explorer.