Computer Configuration > Administrative Templates > Microsoft Edge > Printing
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HKLM\Software\Policies\Microsoft\Edge
Setting this policy to Enabled or leaving it unset enables the LPAC Sandbox for printing services when the system configuration supports it. Setting this policy to Disabled has a detrimental effect on Microsoft Edge's security because services used for printing might run in a weaker sandbox configuration. Only turn this policy off if there are compatibility issues with third party software that prevent printing services from operating correctly inside the LPAC Sandbox.