Greetings.After receiving a security update today, I can no longer access the Add/Remove software, or the device manager. When select add/remove nothing happens. When I select Device manager, from the various ways of selecting it, I get a "duser.dll is missing. Re-installing the application may help."What do I do?THanks.1 person needs an answerI do too

Tell us which Security update?Scan for malware. What are you using for protection?Hope this helps, Gerry Cornell