help with descktop pc

My son has killed the descktop pc. He is 8 years old but has been known to download games and alter things on the pc.
I don't know what he did yesterday but it would not reboot and said something about windows not being able to load due to something which I can't remember.
No worries I thought, I will just reset to an earlier date. It has been ok in the past when he has done similar.
No, I can't do that so I decide to use F11 and reset it to as it left the factory as there is nothing kept on it of any importance.

Now, halfway through trying to reset everything I have a green screen with the following:

A problem has been detected and windows has been shut down to prevent damage to your computer.
The problem seems to be caused by the following file : nv4_disp
If this is the first time you've seen this stop error screen, restart your computer. If this screen appears again, follow these steps.
The device driver got stuck in an infinate loop. This usually indicates a problem with the device itself or with the device driver programming the hardware incorrectly.
please check with your hardware device vendor for any driver updates.
Technical information
STOP 0x000000EA (0x8569FDA8, 0x85665B98, 0xF7A4DCBC, 0x0000001)
nv4_disp
begining dump of physical memory
physical memory dump complete
contact your system administrator or technical support group for further assistance.

Now, the pc is a few years old so I don't have a technical support group to turn to so...................

Oh mighty org, please help me sort out my lads pc.

[the_lone_wolf]

Sounds like a bug in the display adapter driver

Uninstall your graphics card driver then reinstall the latest version downloaded from the manufacturer's website, most likely www.ati.com or www.nvidia.com

edit: just saw you can't boot, can you boot in safe mode? (hit F8 (i think?) repeatedly while the computer starts up)

[SoulKiss]

Try Here

Cos thats all I did

Just seen TLW's post and as that is how I was going to end this I will

Oh and this is the best link from the one above

My problem is that even if I get into the safe mode I wouldn't have a clue what to do next.I am not very pc literate......

[the_lone_wolf]

Originally Posted by FG1

My problem is that even if I get into the safe mode I wouldn't have a clue what to do next.I am not very pc literate......

sounds like you need to find a friend who is and ask them to find a way to reinstall your graphics card driver, if i were there i could do it but it's not the sort of thing you can do over the forum or even the phone without a long and arduous battle

[L3nny]

Go into safe mode (hold f8 on startup), Open control panel > add remove programs and uninstall everything which has Nvidia in the name

Then right click on my computer > properties > hardware> device manager

Select display adapters and right click and uninstall anything under there.

If your PC will load the display will be a low resolution version, Windows will try and reinstall the drivers for you, don't do this.

Go to www.nvidia.com and download the latest drivers from there.

Edit, you may want to download the Nvidia driver to a USB drive or CD on another PC first to save you messing about with blocky web pages

Unfortunately I cant get into safe mode.
When I press F8 the tower does its bit of whurring then on the screen I get:
The system is not fully installed. Please run setup again.....

[TSM]

Press F8, select 'Last Known Good Configuration'

Tried that. No joy.

I also have to press F1 during the start up process.

Bloody thing, note to self, keep autistic 8 year old away from any chance of downloading anything in the future.