Great news of your advances with Premiere Elements burn to Blu-ray, and thank you for sharing it with us all.
I went into my BIOS and chose a Default setting.
What did you change in the Bios? Did you set everything to default or just one particular setting?
Congratulations on producing your Premiere Elements Blu-ray products. Great job.
Rather than vaguely remembering my way thru it, I just re-booted and looked at it.
I have an ASUS, it's called UEFI BIOS. When F2'd into, it comes up in EZ MODE. Mainly a graphical display of things like temperature, fan status, RAM, etc. There is a triangle with the captions Quiet, Performance, and Energy Saving at the three points. To the right are 3 buttons, with icons on them that correspond to the 3 point captions. Click them and the triangle moves in the direction of the point caption.
There is a button in this screen to F5 Defaults. You can also go into Advanced Mode, which is what I did. There is a more familiar form of the BIOS, at least to me, that is many different settings on the things attached to the motherboard. It too has an F5 option, but it is called Optimized Defaults. I'm guessing, but it probably sets defaults for your preference in the triangle so lengthily described above.
Anyway, when I did my fix, I took a deep breath and hit the Optimized Defaults F5, saved changes and exited. Since reboot, I have a stable platform. I can't honestly say I know what it set back to default.
Hope this answers.
Thanks for sharing the further details of what worked for you with regard to Premiere Elements problem solving and Bios adjusts.
The details will give greater insight on the matter to those experienced in Bios adjusts and want to explore what worked for you.
Your extra effort in compiling the information for post 2 is appreciated.