We have an issue after installing ESET NOD32 4.2.58 on server 2008 R2, Microsoft patches and some roles do not install. We tested using a clean build machine without ESET NOD32 and no issues, so either this is an issue with ESET NOD32 or the policy we are using. We have created two policies, one with the default options ESET comes with, and one with our own custom settings, and the error happens with both. Is there an exception we are missing? Any suggestions welcome.