laptop computer running Windows 10 Secure Host Baseline version 5.3 sits on the 436th Communications Squadron consolidated work bench waiting to be checked by client service technicians Sept. 21, 2017, on Dover Air Force Base, Del. The upgrade from Windows 7 to Windows 10 and the use of a single operating system across the Department of Defense will help improve cybersecurity and help reduce information technology costs. (U.S. Air Force photo by Roland Balik)