Every time I attempt to open a word file it starts blinking and locks up the
computer whilst being scanned by nortons.
ctrl+alt+del no response
restart : flashes a board "closing dllhost.exe" does not close asks close
now click yes and nothing happens.
Then try shut down, no response.
Finally have to hit the restart button.
when I restart word it wants to open in safe mode.

Search reveals 4 files three are legitimate and one DLLHOST.EXE-1EB8AF26.pf
located in c\WINDOWS|Prefetch has no info and appears unsigned on properties
and opens with unknown application.
furthermore it appears to be somehow linked to the access files
Is this the culprit????
and where did it come from as I keep verry tight security on the beast.
If I delete this Will this fix the problem or make things worse??????