HP Pavilion Notebook PCs support
"Page Fault In NonPaged Area" Serious Error Message Appears During Startup
When booting or restarting the notebook, the following error message may appear on a blue screen:
PAGE_FAULT_IN_NONPAGED_AREA *** STOP: 0X00000050
Windows may not startup or boot. The notebook may restart automatically after the error appears.
This blue screen error is due to a downlevel version of HP Notebook Utilities software for Windows XP. Use the following steps to uninstall the current version and download and install the latest version.
Method 1: Uninstall HP Notebook Utilities Software for Windows XP
- Press and hold down the Power button for 5 seconds to turn off the computer. Turn the computer back on.
- Press and hold the F8 key after the HP or Compaq logo screen appears, but before the Windows logo screen is displayed.NOTE:On some models that use UEFI instead of BIOS, no HP or Compaq logo displays during start up. If you are required to press key in the beginning stages of start up (when the logo normally appears on other models), do so as soon as the notebook starts. There may also be a text message that prompts you to press a specified key when the message appears.
- From the Windows Advanced Options Menu Select Safe Mode. When the Windows XP Desktop opens, Safe Mode will be displayed in the four corners.
- Click Start then Control Panel.
- Select Add or Remove Programs.
- Click on HP Notebook Utilities Software.
- Select Remove.
- Restart the computer by selecting Start then Shut Down. Select Restart form the drop down menu.
- After the computer restarts in Windows, download and install the latest version of HP Notebook Utilities Software available on HPs Drivers and Downloads Web site.
Method 2: Hard Drive self test
A hard drive self test can be performed from the BIOS.
- Start or reboot the notebook PC.
- Press the F10 key (on some notebook PCs, F2 or F6).
- Use the Left/Right arrow keys to navigate to Diagnostics.
- Use the Up/Down arrow keys to select Primary Hard Disk Self Test and press Enter.
- Press Enter to start the hard disk self test.
- Upon completion, press any key to exit.
- Press the Esc key. Press the Esc again.
- Use the Up/Down arrow keys to select Exit Discarding Changes.
Method 3: Reseating the RAM
Notebooks are designed so users can add additional memory using a simple Phillips screwdriver. After review the following steps, if you are not confident to perform the installation yourself, you may contact an HP authorized distributor for technical assistance.
NOTE:If someone other than HP installs or upgrades the RAM, any damage caused by the RAM and/or by the person when trying to install or upgrade the RAM is excluded from coverage under the product warranty. The customer assumes all risk and liability for damages for any such installation or upgrade.
NOTE:Some HP notebooks may have a secondary memory module located under the keyboard. For removal and replacement instructions pertaining to the second memory module contact HP service and support.
Use the following steps to remove and replace the memory modules:
Step 1 - Remove the battery
- Slide and hold the battery release latch to the unlock position.
- Use your finger to lift the battery up and out.
Step 2 - Remove the memory module
- Locate the memory module cover on the bottom of the notebook.
- Remove the screw that covers the memory module.
- Use your finger or a flat head screw driver to lift the inside edge of the memory module and remove it.
- Push both tabs outward simultaneously to release the memory module.
- Grasp the memory module by the edges and pull gently to remove it.
- Align the keyed (notched) edge of the memory module with the keyed area in the expansion slot. Insert the memory module into the slot at a 45-degree angle until it is seated.
- Push the front edge of the memory module down until the retention clips snap into place.
- After reseating the memory module, replace the memory expansion cover and then replace the screw.
Step 3 - Replace the battery
- Insert the battery into the notebook.
- Push the battery into the base enclosure until you hear a click.
- Connect the AC adapter and turn on the notebook.
After the memory is reseated, connect the AC adapter and turn on the notebook:
- If the notebook boots normally and the Windows desktop appears no further action is needed. If this problem re-occurs often, contact HP Service and Support for further assistance.
- If the notebook continues to stop responding at the Compaq or HP logo, turn off the notebook and contact HP Service and Support for further assistance.NOTE:On some models that use UEFI instead of BIOS, no HP or Compaq logo displays during start up.