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HP Notebook PCs - Windows Stops Responding or Repeatedly Restarts after installing a Software Application

This document pertains to HP Notebook PCs with Windows Vista.
Understanding Windows Vista problems during startup
If a PC that has been working properly fails to startup or boot (including locking up, freezing, hanging, or automatically restarting) after a new application or driver is installed, do one or more of the corrective methods that are listed below to resolve the problem.
The recommended corrective methods below are listed in order of complexity.
Disable automatic restart when able to view the Windows Desktop
If you are able to view the Windows Desktop, disable automatic restarting by following the steps below:
  1. Click Start and then right-click Computer. Select Properties
  2. Click Advanced system settings, and then select the Advanced tab.
  3. Under Startup and Recovery, click the Settings button.
  4. Under System failure, remove the checkmark next to Automatically restart.
  5. Click Ok to close the Startup and Recovery window, and then click Ok to close the System Properties window, and then close the Properties window.
If you wish to re-enable the automatic restart function, replace the checkmark beside Automatically restart under System failure.
Disable automatic restart when unable to view the Windows Desktop
If you are unable to view the Windows Desktop and/or the notebook continues rebooting automatically (whether by your actions or the notebook continues booting without your intervention), disable automatic restart by following the steps below.
  1. During the rebooting process, repeatedly press the F8 key to enter Windows Advance Options Menu.
  2. Use the up and down arrow keys to select Disable automatic restart on system failure and then press the Enter key.
  3. Press the Enter key and Windows will restart.
Use last known good configuration
Using the last known good configuration may allow the notebook to boot to Windows using the most recent settings that worked.
If you are unable to start in command prompt mode and you want to revert to the last restore point, follow these steps:
  1. Remove all CDs and DVDs from your computer, and then restart the computer.
  2. At the first screen, press the F8 key repeatedly every half of a second until a Windows Advanced Options menu displays.
  3. Press the Down Arrow key until Last Known Good Configuration is highlighted and then press Enter.
Windows Vista starts the PC using the last previous restore point.
Use System Restore to reset Windows to an earlier known safe operating point
This method reverses recent operating system changes to the notebook PC, such as the installation of new software, and takes the computer back to a previous working state. This method may uninstall or remove the software that is causing the problem.
If your computer stops working correctly, you can restore it to a previous point in time by following the steps below:
  1. Click Start > Control Panel.
  2. In the Search box, type System to find System in the Control Panel.
  3. Select Restore system files and settings from a restore point. The Restore system files and settings window displays.
  4. You may accept the recommended restore point by clicking Next, or you may select Choose a different restore point > Next to see a list of automatically and manually generated restore points.
  5. Select a restore point and then click Next. The Confirm Restore Point Selection window displays.
  6. Click Finish. A confirmation window displays; click Yes to continue. The computer will restart.
  7. Click OK. Your system settings will be restored to the point in time when they were saved.
      note:
    If an error message appears saying that the PC cannot be restored to the point you selected, try a different restore point.
Uninstall recently installed applications
If notebook PC does not start properly shortly after installing a software program, uninstall the application by following the steps below:
Use the following method to start Windows Vista in Safe Mode:
  1. Remove all CDs and DVDs from your computer.
  2. Restart your computer.
  3. At the first screen on restart, before the HP or Windows logo appears, press the F8 key repeatedly.
  4. When prompted, select the Safe Mode with Networking option.
  5. Log onto your computer with an account that has administrator rights.
Uninstall software applications using the steps below:
  1. On the Windows taskbar click Start > Control Panel. In Control Panel, Uninstall a program.
  2. Navigate through the alphabetical list of all installed programs and select the name of the most program or programs you wish to remove.
  3. Click Remove, click OK when prompted to verify the removal of the program.
  4. Restart the computer by selecting Start > Shutdown > Restart.
  • If the computer starts up properly, contact the software manufacturer for updated instructions for a proper installation.
  • If the computer does not start up properly, reboot the computer in the Safe Mode and repeat the methods for uninstalling any other recently installed software.
Remove applications that load during startup using the System Configuration Utility
If the system fails to start properly after installing a new software application, there may be conflicts with the application if it loads during startup. To resolve the problem, it may be necessary to use System Configuration to remove the application from Windows startup, or to change the startup sequence.
Disable applications that load during startup
Use the following method to start Windows Vista in Safe Mode.
  1. Remove all CDs, ands DVDs from your computer.
  2. Restart your computer.
  3. At the first screen on restart, before the HP or Windows logo appears, press the F8 key repeatedly.
  4. When prompted, select the Safe Mode with Networking option.
  5. Log onto your computer with an account that has administrator rights.
Remove startup items using System Configuration by following the steps below.
  1. Click Start. In the Search field, type System Configuration and then click on the program that Search provides.
  2. On the System Configuration window, on the General tab, select Selective Startup option, and unselect the Load Startup Items.
  3. Click OK and then click Restart.
    The computer should restart and operate properly even without loading any of the startup items. Most startup items are helpful utilities that run in the background or sit in the system tray until they are needed.
  • If the computer does not restart and operate properly, there is a more severe problem and performing the method for reinstalling the Windows OS may be necessary.
  • If the computer restarts properly, examine and enable the entries under the startup tab.
For additional information on improving performance using the System Configuration Utility, see Related Links.
Enabling Startup Tab Entries in System Configuration
The computer can operate after disabling the entries under the Startup tab; however, most of the entries make it easier and safer to operate the computer.
After restarting the computer, open the System Configuration window by clicking Start. In the Search field, type System Configuration and then click on the program that Search provides. On the Startup tab, click on the entries to enable any known items related to anti-virus or firewall applications. To determine what an item does, search the Internet on the item's name.
HP recommends that you always enable the items listed below:
  • HPWuSchd2
  • DVDCheck
  • synTPLpr
  • SYNTPEnh
  • EabServr
  • ccApp
  • ctfmon
  • HP Wireless Assistant
For more information on System Configuration (msconfig.exe), go to the Microsoft web site and search for support documents or see Related links.
Reinstall Windows Vista
If the computer will not boot after you have performed both the method involving System Restore and System Configuration, it may be necessary to reinstall the Windows operating system.

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