Windows Experience Index Error...

[melon]

Using "winsat formal" in the Command Prompt, I get the following error in bold:

Windows System Assessment Tool
> Running the Formal Assessment
> Running: Feature Enumeration v1.0.0.0 ''
> Run Time 00:00:00.64
> Running: WinSAT Direct3D Assessment v1.0.0.0 '-wddm'
> Assessing desktop graphics performance
> Run Time 00:00:10.55
> Assessing Direct3D9 alpha blend performance
> Run Time 00:00:05.66
> Assessing Direct3D9 texture load performance
> Run Time 00:00:05.90
> Assessing Direct3D9 ALU performance
> Run Time 00:00:06.01
> Graphics Performance 381.83 F/s
> Video Memory Throughput 20205.30 MB/s
> Run Time 00:00:30.79
> Running: Media Decode/Encode Assessment v1.0.0.0 '-input C:\Windows\Performan
e\WinSAT\winsatencode.wmv -encode C:\Windows\Performance\WinSAT\\winsat.prx'
> Run Time 00:00:05.65
> MOOBE Run Time 00:00:38.33
> Running: Media Foundation Playback Assessment v1.0.0.0 '-input C:\Windows\Per
ormance\WinSAT\winsat.wmv -nopmp'
> Run Time 00:00:02.68
> Running: CPU Assessment v1.0.0.0 '-encryption'
> Run Time 00:00:10.19
> Running: CPU Assessment v1.0.0.0 '-compression'
> Run Time 00:00:10.17
> Running: CPU Assessment v1.0.0.0 '-encryption2'
> Run Time 00:00:10.30
> Running: CPU Assessment v1.0.0.0 '-compression2'
> Run Time 00:00:10.22
> Running: System memory performance assessment v1.1.0.1 ''
> Run Time 00:00:05.41
> Running: Storage Performance Assessment via Profiling v1.0.0.0 '-seq -read -n
0'
Error: Failed to properly assess the disk.
The parameter is incorrect.
> Run Time 00:00:00.00
> Running: Storage Performance Assessment via Profiling v1.0.0.0 '-flush -n 0'
Error: Failed to properly assess the disk.
The parameter is incorrect.
> Run Time 00:00:00.00
> CPU LZW Compression 254.37 MB/s
> CPU AES256 Encryption 152.85 MB/s
> CPU Vista Compression 690.40 MB/s
> CPU SHA1 Hash 1169.43 MB/s
> Memory Performance 4339.30 MB/s
> Direct3D9 Alpha Blend Performance 216.35 F/s
> Direct3D9 Texture Load Performance 531.57 F/s
> Direct3D9 ALU Performance 537.22 F/s
> Media Foundation Decode Time 0.93564s
> Total Run Time 00:01:27.35

What would cause this kind of error? FYI, I'm on an nForce 680i SLI chipset motherboard with a GeForce 8800 GTS (G92) video card. Would nForce drivers cause the above perhaps?

 

[Dark Atheist]

if something was accessing the disc that would cause it, defrag program, antivirus

 

[melon]

Finally found out what was causing this! Turns out it was a bug in MacDrive 7. It pestered me to check for updates today after not checking for a while, and, reading release notes, it turns out that version 7.2.1 caused the Windows Experience Index to fail only in Vista 64. It apparently was fixed in a subsequent update. After updating MacDrive, I ran the WEI and it worked flawlessly.