NetworkService registry file corrupt UsrClass.dat

G

Guest

HELP!

The network on a computer I am working on is toast. The event viewer shows
an Event 1500 in the context of the built-in NETWORK SERVICE account, and
then follows it up with an event 1508 in the context of SYSTEM.

In the registry editor, the key HKEY_USER\S-1-5-20 is missing. I cannot
load the key manually.

This does NOT stop the computer from booting, so please don't refer me to
the only KB article that seems to deal with corrupted registries (KB
#307545). That post deals with the main system registries; this is a USER
registry, which stores configuration data used by accounts running under the
special NetworkService account.

TCP/IP fails to load, even after "resetting" it per #Q299357. The error in
event viewer is "The specified driver is invalid." Windows Firewall/ICS
fails with the same error.

No system restore points available. In-place upgrade does not seem to do
anything to restore/rewrite/overwrite this key.

Is there anything I can do to replace this registry and reconfigure the
network, or dump/reimport the key, or any such thing? This is not my
computer, so I was trying to get network service back without having to blow
the whole machine away and start over...

I suspect the machine may have been shut down before the registry was
committed to disk, but that's just an educated guess...

Thanks for your help, in advance...

Jeff
 

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