I had the same thing happen to me a couple of days ago. would love to see an
answr to this please. :)

"user@domain.tld" wrote:
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> Good afternoon,
>
> Yesterday, I noticed that my HDD light was flashing about twice a
> second, every second, even while the computer was idle.
>
> While I got to wondering, I decided to open Vista's Resource Monitor,
> and I looked at the "Disk" section.
>
> Sitting at the top, when sorted in Write >> ascending, sits Explorer.exe
> writing to c:\users\[uname]\AppData\Local\Microsoft\usrclass.dat.
>
> In third place sits rundll32.exe, writing to the same file.
>
> I was just wondering what this file was, and why my computer continues
> to write to the file, and how much damage this constant writing may do
> to my hard drive.
>
> Thank you,
>
> [email]U@D.TLD[/email]
>[/color]