I had an issue with windows that would make my computer restart when i was trying to load a game so i tried everything i could think of to fix it but nothing worked then my friend told me to TRY and repair windows with my windows XP CD.

So i did what my friend told me and did the repair but my XP CD was from 2001 so i had to update service pack 2&3 again. Now windows cant find my video card at all. There is no video options in control panel or in the device manager but i have my monitor going through the card and the picture till comes up so i have no idea whats going on.

I have tried to reinstall the drivers for the video card but it says it cant find the hardware at all but programs like Everest can find it. 

Field   Value
Computer   
Operating System   Microsoft Windows XP Home Edition
OS Service Pack   Service Pack 3
DirectX   4.09.00.0904 (DirectX 9.0c)
Computer Name   
User Name   
   
Motherboard   
CPU Type   AMD Athlon XP, 1800 MHz (13.5 x 133) 2200+
Motherboard Name   ECS K7VTA3 v8  (5 PCI, 1 AGP, 1 CNR, 2 DDR DIMM, Audio, LAN)
Motherboard Chipset   VIA VT8377 Apollo KT400
System Memory   1536 MB  (PC2700 DDR SDRAM)
BIOS Type   Award (09/22/03)
Communication Port   Communications Port (COM1)
Communication Port   ECP Printer Port (LPT1)
   
Display   
Video Adapter   nVIDIA GeForce 6600 GT AGP
3D Accelerator   nVIDIA GeForce 6600 GT AGP
   
Multimedia   
Audio Adapter   Creative SB Live! 5.1 Sound Card
Audio Adapter   VIA AC'97 Enhanced Audio Controller
   
Storage   
IDE Controller   VIA Bus Master IDE Controller
Floppy Drive   Floppy disk drive
Disk Drive   HDS722525VLAT80  (7200 RPM, Ultra-ATA/100)
Optical Drive   SONY CD-RW  CRX215E1  (48x/24x/48x CD-RW)
Optical Drive   TSSTcorp CD/DVDW SH-S162A
SMART Hard Disks Status   OK
   
Partitions   
E: (NTFS)   190771 MB (9338 MB free)
   
Input   
Keyboard   HID Keyboard Device
Keyboard   Standard 101/102-Key or Microsoft Natural PS/2 Keyboard
Mouse   HID-compliant mouse
   
Network   
Network Adapter   Linksys LNE100TX FAST Ethernet Adapter(LNE100TX v4)  (192.168.1.3)
   
PERIPHERALS   
Printer   Microsoft XPS Document Writer
USB1 Controller   VIA VT83C572 PCI-USB Controller
USB1 Controller   VIA VT83C572 PCI-USB Controller
USB1 Controller   VIA VT83C572 PCI-USB Controller
USB2 Controller   VIA USB 2.0 Enhanced Host Controller
USB Device   LACHESIS Mouse
USB Device   USB Composite Device
USB Device   USB Human Interface Device
   
Problems & Suggestions   
Problem   Disk free space is only 5% on drive E:.
Quote

Problem   Disk free space is only 5% on drive E:.

There's your issue right there...time to do some housekeeping.

I would try the following

1. uninstall the nvidia drivers

2. Then  run driver sweeper utility

3. Upon reboot, go to the device manager and uninstall the device.

4. Then restart pc in safe mode (use safemode with metworking), and the computer should detect your hardware and attempt to install software/drivers for now "new" card.

5. Reinstall latest nvidia drivers for your card.

Hope this works for you, it did for me on my Windows Vista machine when something similar happened, but I think it would work on XP too and just make a system restore point before you start if you're bit worried.

that's drive E: though.... not drive C:...
So, doesnt mean its not the local hard drive..... you can assign what ever letter you like.... also its the only drive he has listed.