So, if you open System properties in Windows, it shows 112MB, right?
According to the log, the boot-time scanner ran out-of-memory even before it started to initialize for real. I must say it's rather strange, as it didn't do much up to that point (that could eat any significant amount of memory); more was to come.
What it did was initializing the registry... please check the files
Windows\System32\Config\Software
and
Windows\System32\Config\System
How big are they?