If an installation of windows is unbootable, is it possible to access the event log from a Linux LiveCD?
It is possible if you are running Vista or newer. The event log data is now written to an XML file in
Previous versions of Windows wrote the log in an undocumented binary format. This web page tries to describe that format.
GrokEVT which is mentioned on that page, is is a collection of scripts built for reading Windows NT/2000/XP/2003 event log files. GrokEVT is released under the GNU GPL, and is implemented in Python.
The default locations of the logs are: