|One of the files has a 208 prefix.|
This is the actual BIOS data file
Winflash is the software to do the flash.
You need both
What are these classic symptoms of a corrupted bios that you mention.
It is very rare to get a corrupted BIOS, so much so that a corrupted BIOS is the very last thing on the list of possibilities when there is a problem - an act a desperation almost when everything else, and I mean everything else, has failed. Unless you are trying to fix one of the problems, not of which are serious, it is unlikely a BIOS flash will help you.