Can't install any drivers whatsoever

Ive recently decied to update my Radeon 4850 to Catalyst 11.10 for BF3 beta to run beta. But whenever I try to install a new driver it keeps on coming up with the same message: "Driver Install: The INF file was not found. I then tried to install another driver to see if it would work. It doesn't. Same message. I then tried a bunch of older drivers. I even went back 8.10 to see if that would work. But even that gave me the same message. I can't system restore either because I get "%systemroot%registration. Destination: ComPlus Staging error" each time I try to restore my PC. This is rather annoying as I just want to be able to play games again. Can someone help me to get past this?

If it helps here is the report after one of the failed installations:

Catalyst™ Install Manager
Installation Report
10/10/11 01:35:19

Hardware information
Name AMD Radeon Graphics Processor
Manufacturer Advanced Micro Devices, Inc.
Device ID 0x9442
Vendor ID 0x1002
Class Code 0x030000
Revision ID 0x00
Subsystem ID 0x21c0
Subsystem vendor ID 0x1458
Other hardware
Existing packages
Microsoft Visual C++ 2010 Redistributable
Packages for install
AMD Catalyst Install Manager
Final Status: Success
Version of Item: 3.0.847.0
Size: 20 Mbytes
AMD APP SDK Runtime
Final Status: Success
Version of Item: 2.5.775.2
Size: 90 Mbytes
AMD Display Driver
Final Status: Fail
Version of Item: 8.901.0.0000
Size: 90 Mbytes
HDMI/DP Audio Driver
Final Status: Fail
Version of Item: 7.12.0.7702
Size: 1 Mbytes
AVIVO
Final Status: Success
Version of Item: 11.7.0.10923
Size: 3 Mbytes
HydraVision
Final Status: Success
Version of Item: 4.2.216.0
Size: 6 Mbytes
AMD Drag and Drop Transcoding
Final Status: Success
Version of Item: 2.00.0000
Size: 1 Mbytes
AMD Media Foundation Decoders
Final Status: Success
Version of Item: 1.0.60923.2205
Size: 1 Mbytes
Catalyst Control Center
Final Status: Success
Version of Item: 2011.0923.2225.38371
Size: 150 Mbytes

Other detected devices
Manufacturer Advanced Micro Devices, Inc.
Device ID 0xaa30
Vendor ID 0x1002
Class Code 0x040300
Revision ID 0x00
Subsystem ID 0xaa30
Subsystem vendor ID 0x1458

Error messages
Driver Install: the installation failed
Driver Install: the INF file was not found