HP Notebook PCs - Testing and calibrating the battery (Windows) | HP® Customer Support
Calibrate Your Laptop's Battery for Accurate Battery Life Estimates In Windows 10/8/7 - YouTube
Battery won't calibrate. - HP Support Community - 7673795
HP Notebook PCs - Testing and calibrating the battery (Windows) | HP® Customer Support
Calibrate HP battery from BIOS - HP Support Community - 7232734
Windows 10 HP Laptop failing to start and re-install failing too, booting in safe mode not working, booting with F11 not working, booting with F2 and running diagnostic test provides this message.