7.
If hardware has recently been installed, remove it and determine whether the computer functions properly.
8.
If software has recently been installed, uninstall it and determine whether the computer functions
properly.
9.
If the screen is blank, confirm the display choice by pressing
Or plug an external monitor into a different video port on the computer, if one is available, and close the
computer lid.
10.
Verify that the latest version of BIOS, drivers, and software are installed. A new release might support new
features or fix the problem.
11.
Press the
operating correctly.
12.
Press the touchpad On/Off button light. If the light toggles on or off, the touchpad is likely operating
correctly.
Consulting with HP Service
If further HP support is required, this information may be requested when you call. So it may be helpful to take
notes.
Technical support registration number (if applicable)
●
●
Product serial number
Product model name and number
●
Product identification number
●
Applicable error messages
●
●
Add-on boards or hardware
Third-party hardware or software
●
Operating system type and revision level
●
122 Chapter 7 Troubleshooting guide
caps lock
or
num lk
key. If the
Windows logo
caps lock
or
num lk
light toggles on or off, the keyboard is likely
+
p
and set to screen only.
ENWW