I happend to see a Windows Vista Business PC fully patched that could not connect the network drives via GPO from 2008 domain. Group Policy Preference Client Side Extensions for Windows Vista (KB943729) patch was installed on the client. But still no network drives were mapped to the client.
In the eventlog of the client the following entry is created
Log Name: Application
Source: Group Policy Folders
Date: Date
Event ID: 4099
Task Category: (2)
Level: Warning
Keywords: Classic
User: SYSTEM
Computer: Computer Name
Description:
The client-side extension could not log RSoP data because it failed with error code ”0x8004401e This is not a valid MOF file”.
The reason is that the drive mapping ist not working if the following condition is true.
The user that you want the network drives to connect, is member of the local administrators group and the UAC feature of Windows Vista is turned on.
To resolve this issue you’ll have to do one of the following things:
1. remove the user from local admin group
2. disable UAC
3. Add an entry to the client registry as described in the following KB article: KB937624
After doing one of these steps you should do a reboot or gpupdate /force for the changes to apply.
