securety problem - unknow user

[Guest Telezeit]

Hi,

 

i have a great security problem:

 

By Events of Vista i became this warning:

 

 

Event-ID 1530

 

1 user registry handles leaked from

\Registry\User\S-1-5-21-3943583854-4143474850- ......_Classes: Process 924

(\Device\HarddiskVolume1\Windows\System32\svchost.exe) has opened key

\REGISTRY\USER\S-1-5-21-3943583854-4143474850-......_CLASSES</Data>

 

What is the Problem? I have formatet my disc and vista installed new. But

the problem is the same.