Locating ID labels
To assist in troubleshooting, product, serial, and authentication numbers are available on each computer.
●All workstations have a serial number (unique for each workstation) and product number. Have these numbers available when you contact support.
●The Certificate of Authentication (COA) is used only for systems with Windows 7 preinstalled.
●The Genuine Microsoft Label (GML) is used only for systems with Windows 8 preinstalled.
●A service label shows the build ID and Feature Byte strings, which are needed for system board replacement.
The
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