My main hard drive has no drivers...help!!

My C Drive has lost it's drivers. It's showing in Device manager with a exclamation point. Windows tries and fails to install it on very reboot and it's VERY annoying. I need some help trying to get the drivers to install correctly. Thanks.

 

Everest report below. PC is custom built: no model name or number.

 

No other devices with ! marks.
No malware, no software or hardware changes, no Windows re-installs.

 

Already tried the Nvidia driver once with no effect. I didn't realize that the pc was on Sp2, since it is still new I thought it had come with SP3 on it. I'm at work now so I'll try the all-in-one one more time and update to SP3 then get back to you when I get home.

 

I just remembered that I have automatic updates turned on so why wouldn't SP3 show up on any of my update attempts?

Do you know how I can get it without using Windows update since it's not showing up as an available update for my pc?

 

I already have SP3, why makes you say that I don't have it? I am attaching my pc info screen.

When I did the NVIDIA driver download I got two failures:
other PCI bridge device (this one I have never seen before)
ST350064 1AS SCSI Disk device (this is the same failure that I started the thread about)

I have an ASROCK installation cd if there's anything on there that may help.

 

I ran both scannow and chkdsk and nothing has changed. I can't find anywhere on the ASROCK cd to update Chipset and SATA RAID drivers, unless I'm missing something. Here's what the menus say are available:

Drivers
All-in-one Driver
USB 2.0 Driver
Onboard VGA Driver
HD Audio Driver and Application
AMD CPU Driver

Utilities
Microsoft DirectX 9.0c Driver
Norton Internet Security
ASROCK OC Tuner
Adobe Acrobat Reader v8.12
ASROCK IES
ASROCK Instant Boot

Information
(This menu has instructions only)
**********************************
What should I do now?
BTW I have Kaspersky IS running and have had no malware issues at all.

 

In addition to this problem at the same time that this one started both of my dvd drives started malfunctioning also. Now neither one of them will determine what type of disk is inserted (no application icons will show up when a disk is inserted), and when I double click on the inserted drive it goes straight to the file window and won't open in the correct application. I've already cleared the filters and made sure the cd and dvd types were all linked to the right applications in the file types tab but I can't get this problem corrected either. Could the problems be related?