Note The WindowsUpdate.log file is in the following location:
Note The entry in the WindowsUpdate.log file references an extended error that occurs when the system tries to load the Default User Hive.
This problem occurs because the Disk:\Users\Default folder is missing from the computer. This folder contains the NTUser.dat file. When the Default User folder is missing, you cannot load the Default User Hive.
Note In this path, Disk represents the disk where you installed Windows Vista.
Additionally, by default, the Default folder is shown as a hidden folder in Windows Vista.
To resolve this issue, create the Disk:\Users\Default folder. Then, copy the NTUser.dat file to this folder from one of the following locations:
The Windows Vista installation media
Another Windows Vista-based computer
The NTUser.dat is the registry hive that is used when you create new user accounts. Therefore, use only the NTUser.dat file from the Disk:\Users\Default folder. Other versions of NTUser.dat file may not correctly reflect the locations of user-specific files or folders.