UEFI versus CSM

[Terry Rock]

Found a neat article on how to convert the boot drive to enable UEFI in the BIOS without reloading.
This may be done after your current Windows install was updated from a previous version under CSM.
Big difference in boot speed and a host of new security feature become available with the switch.

 

[Alex Townsend]

Sounds interesting. Where did you read this article? Although I'll need to check as I think mine was setup as UEFI before installation recently

 

[Trebormoore84]

Like this?

How to Convert the System from Legacy BIOS mode to UEFI mode after...

Instructions to covert a system originally configured in legacy BIOS mode during Windows* installation to UEFI mode and the partition style from MBR to GPT without data loss.

www.intel.com

I need to do this at somepoint soon as CSM was set to default on the motherboard when I installed it all. Its also is worthwhile doing once all the current motherboards and GPUs all use Resizable Bar aka AMD Smart Access Memory etc.

 

[Terry Rock]

That's the article.
System seems quite a bit quicker to come out of stand-by.
Work request also spool-up much faster after extended periods of simply browsing.
I could not initially understand why my motherboard kept loading into the BIOS on restart, after selected UEFI.
I'd forgotten that I'd migrated from Windows 7 to 8 to 8.1 prior to going to Windows10.
Win7 had obviously been loaded using CSM.

 

[Alex Townsend]

I checked my system and it was installed under UEFI, thought it felt a little zippier after the last install

 

[markie44]

I wasn't able to see or boot from a USB drive with either a win 10 image or Acronis image - probably due to BIOS settings, so end up installing as legacy/MBR.

What is the difference between a UFEI and legacy OS install other than the size of the supported disc?

Cheers