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I am having the same issue, this problem started a few days ago and I have tried everything to correct the problem. Studio 5000 will run with an error at startup. “There was an error logging into the Security Server” 1699-80043B07. RSlinx will not show RSwho Error “Can’t access file: C:\Program Files (x86)\Rockwell Software\RSCommon\Harmony.rsh. I am sure these problems are due to the factorytalk Directory, but when I try to configure the directory I receive and error ” Access Denied” I have gone as far as resorting my Laptop to factory but still no luck. the version of windows 10 is 1709 I don’t believe I have these problems before the update. any help would be greatly appreciated.