I used to use <a href="http://nessus.org/nessus/">Nessus</a>, which was free until some years ago.
There are many commercial vulnerability scanners available. A Google search would offer some options.
If you are looking for a free tool, you might want to give <a href="http://technet.microsoft.com/en-us/security/cc184924.aspx">Microsoft Baseline Security Analyzer</a> a try.
Last Wiki Answer Submitted: October 27, 2010 2:29 pm by carlosdl63,535 pts.
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You will need to provide more information:
Do you have administrative rights to all of these computers? (domain admin rights)
if lets say installed application you can use spiceworks