View Single Post
  #12  
Old April 26th 17, 09:23 PM posted to alt.comp.os.windows-10,alt.comp.os.windows-8,alt.windows7.general
Tim[_8_]
external usenet poster
 
Posts: 141
Default Recovering UEFI boot entries after clear CMOS

"Mr. Man-wai Chang" wrote in
news
On 26/4/2017 12:12 PM, Tim wrote:
I believe that after the CMOS is cleared, the system will start
scanning the hard/ssd drives starting at disk 0 until it finds a
valid boot block.

You should be able to enter the UEFI Bios after clearing the CMOS and
select which drive to boot from. As part of the boot process the BIOS
scans all of the drives to make a list of what is there.


Did you test this?

No, I haven't actually cleared my CMOS to see what happens, but my UEFI
Bios shows me a list of my hard drives identified by manufacturer and model
number, and where else would it get that info except by scanning all of the
possible connections and pulling in the ID stored in every hard drive.

I do know from experiece that the Bios will scan all of the drives for a
boot sector. My system drive/disk (an SSD with nothing else on it but
Windows) decided to die on me right in the middle of upgrading to Win 10.
When I rebooted it found my online backup of that drive and booted from
that with no imput from me.
Ads