If you receive error 8007000b when you try to install Windows Vista updates, the Windows file system transaction log has become corrupted. The transaction log is used by the Windows file system to recover when a file error occurs. To correct this update error, you need to clear the log. Here's how:
In the command prompt window, type fsutil resource setautoreset true C:\.
(This assumes that C: is the drive in which Windows Vista is installed. If Windows is installed on another drive, change the drive letter accordingly.)
Restart your computer.
Download and install the update again.
If you continue to see this error, see this automatic troubleshooter
on the Microsoft Support website, or go to the Microsoft Answers
website for more assistance.
Help and Support search term: WindowsUpdate_8007000b