New
#1
Cannot boot into BIOS with F2 or boot from CD or USB flash drive
For some unknown reason, for the past couple of days, I can only boot my ASUS X750JA laptop normally into Windows 10 (Home). Previously, after Shift+Restart, I used to be able to enter BIOS setup with F2. Now, whenever I try this, the screen remains black and nothing happens: the disk LED does not even flicker!
In future, to restore a system partition backup if anything goes awry with my Windows 10 installation, I need to be able to boot up from a bootable USB flash drive or CD-ROM including software such as AOMEI Backupper or Terabyte Image for Windows. But how will I ever be able to do that if I can't get into BIOS to enable Launch CSM, disable Secure Boot Control and then set the desired boot priority? I seem to be scuppered.
Also, I have successfully made a Windows 10 System Image, but when I practice restoring it from the Advanced Startup screen (just because I want to know how this works in advance of any problems), I again get stuck in a black screen with no disk activity.
Additionally, I tried to make a Windows Recovery USB flash drive, starting from Recovery in the Control Panel. Even though I click the option "Back up system files to the recovery drive", which should add several GB, all that's been written to the flash drive is the basic WinRE package.
It seems as if everything I'm trying to do is being blocked by the M$ demons. This is exacerbating my paranoia.
Can anyone help? Ahead of the Anniversary Update, I want to know that I can restore my EFI system and C partitions if anything goes wrong ... or indeed at any point in the future.