HP 15-f100 user manual download (Page 24 of 80)

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Page 24 of 80
To prevent an unresponsive system,
replace the wireless module only with a wireless
module authorized for use in the computer by the
governmental agency that regulates wireless devices
in your country or region. If you replace the module
and then receive a warning message, remove the
module to restore computer functionality, and then
contact support through Help and Support. From the
Start screen, type
, and then select
Help and
The labels affixed to the computer provide information you may need when you troubleshoot system
problems or travel internationally with the computer.
All labels described in this section will be located in one of 3 places depending on
your computer model: affixed to the bottom of the computer, located in the battery bay, or under the
service door.
Service label—Provides important information to identify your computer. When contacting
support, you will probably be asked for the serial number, and possibly for the product number or
the model number. Locate these numbers before you contact support.
Your service label will resemble one of the examples shown below. Refer to the illustration that
most closely matches the service label on your computer.
Serial number
Product number
Warranty period
Model number (select models only)
Microsoft Certificate of Authenticity label (select models only prior to Windows 8)—Contains the
Windows Product Key. You may need the Product Key to update or troubleshoot the operating
system. HP platforms preinstalled with Windows 8 or Windows 8.1 do not have the physical
label, but have a Digital Product Key electronically installed.
This Digital Product Key is automatically recognized and activated by Microsoft
Operating Systems on a reinstall of the Windows 8 or Windows 8.1 operating system with HP
approved recovery methods.
Chapter 2
Getting to know your computer