My laptop (Toshiba HDTB410EK3AA, bought in January 2019) suggested an update today, and, unluckily, I agreed. Now it has been stuck for hours upgrading BIOS, telling me not to switch the laptop off. At some point, it told me to remove the folder "C:\ProgramData\Dynabook\BIOS_package" manually, but when I tried to, the system told me the folder was in use, and it could not be deleted. I have no idea how to delete it. Since then (also some hours ago), I just keep being stuck with the updating message ("Toshiba BIOS Package Ver 4.4.9 Updating... The power LED will blink to indicate that update is in progress. DO NOT TURN OFF YOUR COMPUTER.") I am afraid if I just shut down and restart, I will have messed up the entire system. Can anybody help?