The reset option does do a rest of the machine and not a clean restart but in my experience, isolated to my environment, HA does not again reset the VM. Also, the only time I have seen the Windows repair mode or in instances where the storage is saturated and the OS can't boot in a timely manner. Not saying thats the case here but I've neve seen a simple reset cause that kind of issue.
As far as changing the option to reset to restart I don't think you will find it in the ADAM database. It's most likely an api call to vCenter and therefore would not be customizable by the View Admin. I think it's main user or in the case where a VM is experiencing issues and a clean restart or shutdown are not viable options.