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 all-in-one service label can be found in the location shown in Figure 8-1 (pull-out card).
Figure 8-1
All-in-one service label location
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Chapter 8 Diagnostics and Minor Troubleshooting
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