Hi Orcahawk, welcome to the Seven Forums.
The culprit seems to be SRTSPL64.SYS
which is one of the system files for Symantec Endpoint Protection
. You could try to uninstall it in Safe Mode and try to boot normally to see if it helps.
If you have difficulties in uninstalling it, here
are the manual removal instructions. They are for XP but the procedure is the same in 7.
EDIT: Too late!