Tip & How-To about HP Pavillion ZV6000 Athlon 64 3500+ 15.4in WideScreen w/ 512MB/80GB/DVDRW/Flash Slot (PCLHCA6435512WWD) PC Notebook
NOTE: This Tip can be Hard, I recommend Advanced Users Only.
The first issue we encounter is that computers with pre-installed operating systems take up the entire drive. Luckily Microsoft included the Shrink volume feature in Vista, so we can easily shrink the Vista partition down to make room for XP.
Open the Computer Management panel, which you can find under Administrative tools or by right-clicking the Computer item in the start menu and choosing Manage. Find the Disk Management item in the list and select that.
Now we'll shrink our volume down by right-clicking on the main hard drive and choosing Shrink Volume.
Now you can choose the size that you want to shrink, which really means you are choosing the size that you want your XP partition to be. Whatever you do, don't just use the default. I chose roughly 10gb by entering 10000 into the amount.
This step might be confusing, because we need to change the cd-rom drive that's invariably taking up D: at the moment, because we want to use D: for the Windows XP partition, but it's already taken by the cd-rom drive. If you skip this step than XP will install onto the E: drive, which isn't the end of the world, but it's not quite as tidy.
Right-click on the cd-rom drive in the list and choose Change Drive Letter and Paths from the menu.
Now we'll change the CD drive to use E: by selecting that in the drop-down.
Now we can create a new partition for XP to live on and make sure that the drive letter is set the way we want. If you do not create a partition now the XP install will do so automatically, but it's easier and cleaner to do it this way.
Right-click on the Unallocated free space area and then select New Simple Volume from the menu.
Follow through the wizard and select whatever options you'd like, making sure to use D: as the drive letter.
Now you will need to close out of disk management and reboot your computer. This is because we can't do the next step until we reboot. (you can try, but it won't work)
So we've come back from rebooting… open up Computer from the start menu and then right-click on the D: drive and select properties. Give your partition a meaningful name like "XP". It would be wise to name the C: drive to "Vista" at this point as well.
Now you'll want to pop your XP cd into the drive and boot off it. You may have to configure your BIOS to enable booting off the CD drive, or if your computer says something like "Hit Esc for boot menu" you might want to use that.
Once you come to the screen where you can choose the partition to install on, then choose either the unpartitioned space or the new partition you created. Whatever you do, don't try and install onto your Vista partition! See how much cleaner it is now that we've labeled each partition distinctly?
We'll assume XP is completely installed at this point, and you will have lost your ability to boot into Windows Vista, so we'll need to use the VistaBootPro utility to restore the Vista boot loader.
Download and install VistaBootPro from vistabootpro.org
During the install you'll be forced to install the .NET 2.0 framework. Open up VistaBootPRO and then click on the System Bootloader tab. Check the "Windows Vista Bootloader" and then "All Drives" radio buttons, and then click on the Install Bootloader button.
At this point, the Windows Vista bootloader is installed and you'll only be able to boot into Vista, but we'll fix that. Instead of manually doing the work, we'll just click the Diagnostics menu item and then choose Run Diagnostics from the menu.
This will scan your computer and then automatically fill in the XP version.. click on the "Manage OS Entries" tab and then click in the textbox for Rename OS Entry, and name it something useful like "Windows XP" or "The Windows That Works"
Click the Apply Updates button and then reboot your computer… you should see your shiny new boot manager with both operating systems in the list!
If you get an error saying "unable to find ntldr" when trying to boot XP, you'll need to do the following:
Posted by Andrew... on
Below is a listing of the full error message that may be related to this error.
Windows NT could not start because the below file is missing or corrupt:
This issue has also been known to be caused by a short in the ground wire in the keyboard cable. Make sure this is not the cause of your error by replacing the keyboard with a different keyboard or just disconnecting the keyboard from the computer.
Before trying any of the below recommendations it's recommend that you load the last known good configuration.
Corrupt boot.ini file
This issue is often caused when the boot.ini is missing or improperly configured. This issue often arises after a user has recently added or removed an operating system on the computer or added or removed hard disk drives in the computer.
Make sure the line pointing to the operating system and its drive and partition is properly configured in the [boot loader] and [operating systems] section.
Missing boot.ini file
Microsoft Windows XP users:
If the boot.ini is severely corrupted or missing a user running Microsoft Windows XP can rebuild the boot.ini to resolve this issue.
Microsoft Windows NT and Windows 2000 users:
To restore the original boot.ini file in Microsoft Windows NT or Windows 2000 you will need an ERD and follow the below steps. If you do not have an ERD you will be unable to follow these steps.
Missing or corrupt ntoskrnl.exe file
If the ntoskrnl.exe file is corrupt or missing this can also generate the error. To restore this file follow the below steps.
Windows NT installed on a partition bigger then 7.8GB
If you are running Microsoft windows NT 4.0 on a partition larger than 7.8GB this issue can occur if the boot files are located outside this limitation. When this error occurs your computer will have the error message as shown below.
OS Loader v4.01
Disk I/O error status=00000001
Windows NT could not start because the below file is missing or corrupt: winnt\system32\Ntoskrnl.exe
Please reinstall a copy of the above file.
If your system partition is larger than 7.8GB you will need to delete the partition and recreate the partition to 7.8GB or less. Additional information about this issue can be found on Microsoft KB Q224526.
Corrupted hard disk drive or severely corrupted Windows
If after trying all of the above steps you are still encountering the same issue it's likely that Windows is severely corrupted and it is recommended you reinstall Windows.
Finally, if during the Windows installation you encounter errors it's likely that your hard disk drive is bad.
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