There are a wide variety of laptops on the market that are distributed by HP, including the Compaq product line. HP provides numerous troubleshooting checklists to help resolve problems regarding system start up, operation and recovery. Visit the HP website to find the manual and checklist that applies to your specific computer. There are several troubleshooting techniques that are common to most HP laptops.
System Restore
1. Open System Restore by clicking “Start,” “All Programs,” “Accessories,” “System Tools” and System Restore.
2. Follow all of the on-screen prompts to restore your computer to a previous date when it was operating normally.
3. Restart your computer. Visit both the HP and Microsoft websites and install the latest updates.
4. Run your anti-virus program.
Hardware Problems
1. Perform a “hard reset” of your laptop by removing all USB devices and media cards. Disconnect all peripheral devices. Remove the AC power adapter and the battery. Press and hold the power button for at least 15 seconds. Reconnect only the AC power adapter and restart the laptop, looking for LED lights and listening for the sound of the hard drive and fan. If your laptop completes the boot process but does not operate normally, troubleshoot the specific devices or system that is not working.
2. Examine the power system if you do not see LED lights, if the screen is black or if the laptop does not start. Check the AC adapter and power connection to the laptop or try to connect a different AC adapter and battery. Contact a computer technician for assistance if these problems persist.
3. Run additional diagnostics if you hear beeping sounds at startup or if you see LED lights blinking but the laptop does not start. If you are familiar with beep codes and POST codes, perform the specific task associated with the code.
4. Troubleshoot your display, drives and external devices to see if a component may be connected incorrectly or there is a device failure or conflict. If possible, boot in BIOS mode and run Memory Test and Hard Drive Test. Use your Recovery Discs to recover the laptop to its original condition.
5. Visit both the HP and Microsoft websites for the terms applicable to any error messages found on a black screen. Boot in BIOS mode and run Memory Test and Hard Drive Test. Perform all the steps previously mentioned in Step 4, above.
Additional Software Troubleshooting Issues
1. Uninstall any recently installed applications that may be causing a blue screen, the Windows logo or your system to continually restart and review the application’s documentation for installation requirements. Some applications may have not been properly installed or that your laptop is infected by a virus or malware.
2. Visit the Microsoft website for updates, and visit the website of your anti-virus software provider and download updates and run a scan.
3. Restore your laptop to its original state if the previous steps do not solve the problem by installing and running your system recovery disc or partition. Follow all on-screen prompts to complete the recovery. Install the latest updates and patches from both the HP and Microsoft websites when you have the laptop running. This will stabilize the software and prevent other start up problems from occurring
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