●
Be sure that all the needed device drivers have been installed.
●
If you have installed an operating system other than the factory-installed operating system,
check to be sure it is supported on the system.
If you encounter software problems, see the applicable solutions listed in the following table.
Computer will not continue and no HP logo screen has appeared.
Cause Solution
POST error has occurred. Observe the beeps and LED lights on the front of the
computer. See
POST Error Messages on page 127 to
determine possible causes.
See the Restore Kit or the Worldwide Limited Warranty for
terms and conditions.
Computer will not continue after HP logo screen has appeared.
Cause Solution
System files may be damaged. Press the F11 key at startup to boot into the recovery
partition and run a factory restore.
CAUTION: Restoring the system will erase all data on the
hard drive. Be sure to back up all data files before running
the restore process.
“Illegal Operation has Occurred” error message is displayed.
Cause Solution
Software being used is not Microsoft-certified for your
version of Windows.
Verify that the software is certified by Microsoft for your
version of Windows (see program packaging for this
information).
Configuration files are corrupt. If possible, save all data, close all programs, and restart the
computer.
Contacting Customer Support
For help and service, contact an authorized reseller or dealer. To locate a reseller or dealer near you,
visit
http://www.hp.com.
NOTE: If you take the computer to an authorized reseller, dealer, or service provider for service,
remember to provide the setup and power-on passwords if they are set.
Refer to the number listed in the warranty or in the Support Telephone Numbers guide for technical
assistance.
126 Appendix E Troubleshooting Without Diagnostics