The Update Package Is Not Permitted By Software Restriction Policy Posted on by Webmaster IT Support Forum › Forums › Active Directory › Group Policy › Troubleshooting › The Update Package Is Not Permitted By Software Restriction Policy Tagged: ERROR_PATCH_PACKAGE_REJECTEDError 1643, Software Restriction Policy This topic contains 0 replies, has 1 voice, and was last updated by Webmaster 2 years ago. Author Posts June 24, 2015 at 11:56 am #1178 WebmasterKeymaster When trying to update Windows or an application, you get: ERROR_PATCH_PACKAGE_REJECTED Error 1643 (0x66B) The update package is not permitted by software restriction policy. This is because you are using a software restriction group policy that isn’t allowing the package to install. Amend the group policy to allow the package installation. Author Posts You must be logged in to reply to this topic.