Sysinternals

https://technet.microsoft.com/en-us/sysinternals/bb842062.aspx
https://technet.microsoft.com/en-us/sysinternals/bb545027.aspx
http://searchenterprisedesktop.techtarget.com/tip/Five-most-useful-Windows-Sysinternals-tools
http://www.techrepublic.com/blog/10-things/10-sysinternals-tools-you-shouldnt-be-without/