Found a solution, but it is risky. I accept no responsibility for damages incurred for those who are willing to give this a go. While working on hardware programming, I upgraded BIOS, downloaded the update from MOBO manufacturer's website. The chip states
version p1.0 (I have no UEFA partition and won't be re-installing Win 10). The program for Instant Flash failed to show in the BIOS config(F2/Del at POST), however the Win 10 BIOS update
did work. First problem I encountered was a bad checksum result, boot failed as a result, so I tweaked the BIOS config which got rid of the problem. Haven't heard a single whistle since.
I tried the solution suggested and no errors were detected(SFC utility). The symptom was having to manually switch off and restart the system at every startup- Yes, this was extremely frustrating. DebbieH, maybe it is the BIOS update- not sure about your
result or how well it worked...