Restart my system

During start up of your system constantly hit either F2 or F12 to enter Bios.
Once in Bios you can configure your boot settings to boot from Your USB device. Bios is pretty self explanatory even for those of us not to familiar with it myself even. Unfortunately mouse is not usanle in Bios. I've had to go to Bios many times on older systems just to boot from cd/dvd Also to correct problems others have made in the boot settings.
Anyway In Bios there is a little summary of each changeable feature within it. Once you make your selection(s) make sure to save changes so you do not have to keep resetting them to your own personal preference. You should be asked upon exiting if you want to save. Your machine should automatically restart and ask you to press any key to but from your device. If you do not hit any key your machine will but normally from harddrive and you will have to restart the system and wait for it to ask again.

Go into bios and select factory default, it will ask if you want to save the settings enter yes, when you exit the screen press F10 to exit and save all changes, on your laptop the key choice may be different so look at the bottom and double check. This should fix your problem, you may need to reload windows again.

To resolve the issue, Please perform the following steps:

Step 1: BIOS Reset

To reset the BIOS defaults, follow these steps:

1. Restart the computer and press F2 (F10 in some Notebooks) as soon as the HP logo appears.
2. Go to Exit menu and select Load BIOS defaults or press F9.
3. Go to Exit menu and select Save changes and Exit or press F10.

This will reset the BIOS defaults. Now, when the Notebook restarts, press F8 repeatedly until the start up menu appears. Select the Safe Mode and press Enter Key to enter in Safe Mode and then perform the step 2.

Step 2 : Disable the "Automatically Restart" under System Failure:

1. Click Start, right-click the My Computer icon, then Properties.
2. Click the Advanced tab, then Settings in the Startup & Recovery section.
3. Remove the check mark next to Automatically Restart under System Failure.
4. Click OK to close the Startup and Recovery window, then click OK to close the System Properties window.
5. Restart the computer.

Step3: Reinstall Power management

To reinstall Power Management in Windows XP, follow these steps:

1. Click Start, select Control Panel, and then choose Performance and Maintenance.
2. Click the System icon to open the System properties window.
3. Select the Hardware tab and click Device Manager.
4. Click the plus (+) sign next to System Devices.
5. Right-click the ACPI Fixed Features button and select Uninstall.
6. Restart the system.

On restarting the system, Windows will automatically detect and install Power Management on the computer.

you need to change native SATA settings in bios. then you can install windows xp. The steps are below

1. Turn off the computer.
2. Press the power button and press f10 to open the BIOS Setup.
3. Use the cursor to navigate the Configuration options to locate the Native-SATA setting.
4. • If there is a SATA setting, select the Disable option, and then press F10 to save the change and restart the computer

Step 1: Disabling Automatically restart option to view error messages
1. You can prevent the computer from restarting by turning off the Automatically Restart option:
2. Click Start .
3. Right-click Computer , and click Properties
4. Click Advanced system settings .
5. Click the Advanced tab and select Settings in the Startup and Recovery section.
6. Remove the check mark next to Automatically restart under System Failure .
7. Click OK to close the Startup and Recovery window and click OK , again, and then close the System Properties window.
8. Restart the computer.
Check if it happens again
If it happens again do a hard drive scan(FULL)
Download the latest BIOS update from hp.com
Step 2: Reinstall Microsoft SATA disk driver solution
1. HP Vista computers that use the Microsoft SATA disk driver do not experience automatic restarts. If you updated your Windows XP computer to a Windows Vista capable computer using an HP upgrade solution, this Microsoft SATA disk driver is available to reinstall.
2. To reinstall the Microsoft SATA disk driver, follow the instructions below.
3. Click Start on the taskbar.
4. Click All Programs , PC Help & Support , and then select Recovery Manager to open the Recovery Manager window.
5. If prompted, click Continue .
6. Click Next to continue.
7. The next window asks if you want to perform a program recovery. Select No , and then click Next .
8. The next window asks if you want to perform a driver recovery. Select Yes , and then click Next .
9. Click Next again to continue.
10. Select Standard Dual Channel PCI IDE Controller from the list of drivers, and then click Next . The reinstallation process takes a few seconds.
11.Click Finish to restart your computer.

Try the following steps:

1. Tap "F8" key while computer is starting
2. Select "Safe Mode" from the startup options menu.
3. If the computer boots in safe mode, restart the computer and check if the problem still exists

This could happen if the BIOS update has created some changes which are not compatible with Windows Vista. Try updating the BIOS again.

tap f10 to enter the bios setup
first restore defaults then
go to device configurations and disable the Sata drive, save ur changes and see if u boot. just solved mine now.

When it happens, open the Process Manager with cont/alt/del. Find explorer.exe and kill it.

Then open the process manager again and this time go up to the top and select File, New Task (run) . If there's a drop down list, select explorer.exe if it's there, and click ok. If it's not there, type it in and select ok. Explorer should open normally again without having to restart.

sounds like the sound card is dying, or the sound codec's are wrong.

Press F10 to enter BIOS setup...
find and disable the SATA native support

Now save and exit then when you reboot and attempt to install XP you will have no problem.

Download the drivers you need from here
http://h20000.www2.hp.com/bizsupport/TechSupport/SoftwareIndex.jsp?lang=en&cc=us&prodNameId=3375995&prodTypeId=321957&prodSeriesId=3375953&swEnvOID=1093&taskId=135&swLang=8