Windows Vista Windows Vista Business updates

Automatic update installations failed.
PC goes through the motions of installing, then tries to restart.
Message appears saying that 'could not restart ....checking for errors'

checks for errors and then loads up windows as normal.
However the updated log indicates that all updates failed to install

I tried typing the error codes in on microsoft site.....enough said.

I also get a message 'An error occurred while transferring data from internet'
when i try to do an online spyware check using TrendMicro Homecare.
Is this related...I don't know.

Can anyone help...many thanks