Today a friend asks for help to reinstall Windows on his Toshiba M840 laptop.
As usual, before I install Windows on a laptop or PC, I always backup data on drive C. Because before installing, drive C will be format first.
I use Hiren Boot CD on flashdish to do the backup. So there is no problem when the Laptop to be installed does not have a CD ROM.
After entering BIOS, I set the boot priority to be:
But when booting, there is absolutely no sign of system reading USB flash disk or CDROM. Though both media have been filled by bootable media.
Because Windows on the Laptop is an error, alias can no longer boot, I really can not get into the system. On the LCD screen, there is only “checking media file”
Originally I thought my bootable CD was corrupt, but after changing it with some other CD, it still does not boot. Likewise the bootable flash disk I have replaced with another, but still an error
After searching for information on google, the cause is because Security Boot is enable on BIOS and boot mode is UEFI (Unified Extensible Firmware Interface).
In order for bootable media to be readable by bios, then you must change boot mode to CSM Boot.
Here I will explain step by step How to Fix Toshiba Laptops that Will not Boot based on cases that occur on Toshiba Satellite Laptop M840 that I handle. But this way can also be used on other types of laptops with a little adjustment.
How to Fix Toshiba Laptop that Won’t Boot
- Turn on your PC
- Enter the BIOS by pressing F2
- Select Security , on the choice of the Secure Boot , change it to disable
- Select the tab Advanced, then select System Configuration, then select the Boot Mode, change of UEFI Boot to CSM Boot
- Save and exit the BIOS by pressing F10
So, that’s How to Fix Toshiba Laptop that Won’t Boot either from CDROM, Flash Disk or Hard Drive.