Hi there welcome to Pchf

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it's to do with your Nvida Graphics card, can you start up into Windows at all?.
If you can you could try this, if you have a floppy disc drive,
Recovering Windows- Copy the “nvatabus.sys” file to a floppy disk. This file is included in the zip file that include these instructions.
- Boot system to Windows XP installation CD.
- At the Setup screen, press ”R”.
- This will bring up the repair console.
- Which Windows installation would you like to log onto
[To cancel, press ENTER]?
- Hit “1” and [ENTER] or the number that represent your Windows XP installation.
- Type the Administrator password:
- Type password and hit [ENTER]
- Insert the floppy disk with the "nvatabus.sys” file into the floppy drive. At the command prompt, type “copy a: vatabus.sys c:windowssystem32drivers” and hit [ENTER]. Once file has been copied, type “EXIT” and hit [ENTER]. This will reboot your system. Remove floppy from system.
- When the system restarts, hit “Cancel” when all devices are detected
- Re-install the nForce 2.03 driver kit.
- Click “Yes to all” when asked to overwriting old files
- Reboot when install is complete
- Upon system restart, right mouse click on My Computer and select Properties
- Select the “Hardware” tab
- Click on the “Device Manager” button
- Expand the section labeled “IDE ATA/ATAPI controllers”
- Left mouse click on the option labeled “NVIDIA NForce(TM) MCP2 IDE Controller” or “NVIDIA® nForce(TM) IDE Controller” (your system will only have one of the above options) (See option2.16.bmp)
- Right mouse click and select “Update Driver” (See option2.17.bmp)
- Select “Install from a list of specific location (Advanced)”
- Select “Don’t search, I will choose the driver to install”
- Select the driver “Standard Dual Channel PCI IDE Controller”
- Reboot.
- After reboot allow device detection.
- Reboot again.
- Everything should now be working correctly.

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