Windows Upgrade Help and more

Not 100% sure, but Oh, that sounds super frustrating, especially coming from a smooth Windows 10 experience. A great first step is to check your drivers, especially for your graphics and chipset, as outdated ones are a common culprit after a big upgrade. If you want, I can walk you through how to ...

Also, you might need to update your BIOS to a newer version that fully supports it.

You could also check HP's support site directly for your model, as they often have a detailed upgrade guide.

Same here. I had the same problem. For me, it was an old external USB hub causing the rollback—unplugging everything non-essential finally let it finish.