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Windows 7: Should I reinstall my computer to boot with UEFI?

12 Mar 2012   #1
FuturDreamz

Windows 8 Pro (32-bit)
 
 
Should I reinstall my computer to boot with UEFI?

I'm still trying to get a hang of how UEFI works. I did take a look at it when I went to install my OS (And again when i got a SSD), but I couldn't make heads or tails of it and used BIOS.

does UEFI make a drastic difference over BIOS, and can I convert without having to do a complete wipe and install? or how would go about switching to EFI, or is it worth it?

thanks.


My System SpecsSystem Spec
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12 Mar 2012   #2
gregrocker

 

You can always save a Win7 backup image of the MBR disk to reconvert and restore if you don't like what you find:

Convert MBR Disk to GPT Disk

UEFI (Unified Extensible Firmware Interface) - Install Windows 7 with - Windows 7 Forums
My System SpecsSystem Spec
13 Mar 2012   #3
FuturDreamz

Windows 8 Pro (32-bit)
 
 

Thanks, but I guess what I'm asking is: is it worth it? I don't want to do a complete nuke&reinstall just to find out it acts exactly the same.
My System SpecsSystem Spec
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13 Mar 2012   #4
bobkn

Windows 7 Pro X64 SP1
 
 

Quote   Quote: Originally Posted by gregrocker View Post
You can always save a Win7 backup image of the MBR disk to reconvert and restore if you don't like what you find:

Convert MBR Disk to GPT Disk

UEFI (Unified Extensible Firmware Interface) - Install Windows 7 with - Windows 7 Forums
Other than the limitations of MBR (like not being able to use a boot disk larger than 2GB), is there any functional difference?
My System SpecsSystem Spec
13 Mar 2012   #5
seavixen32

Windows 7 Ultimate SP1 64-Bit
 
 

You might want to download and read this Microsoft document before you make a decision: UEFI and Windows
My System SpecsSystem Spec
13 Mar 2012   #6
gregrocker

 

Quote   Quote: Originally Posted by FuturDreamz View Post
Thanks, but I guess what I'm asking is: is it worth it? I don't want to do a complete nuke&reinstall just to find out it acts exactly the same.
Quote   Quote: Originally Posted by bobkn View Post
Other than the limitations of MBR (like not being able to use a boot disk larger than 2GB), is there any functional difference?

I don't have any EFI mobos yet and haven't heard of any performance advantage. We only see installation problems here as EFI mobos start coming to the fore. So, like RAID, it is problematic with WIn7 installation.

If you choose to test this, please let us know what you find.
My System SpecsSystem Spec
13 Mar 2012   #7
FuturDreamz

Windows 8 Pro (32-bit)
 
 

I was hoping for something along the lines of improved performance and stability. So far it seems like dad-to-day usage will be unnoticeably different, so i'll just say with BIOS for now.

I may try it next time I reinstall, but that most likely won't be until I upgrade to Windows 8 or build a new computer.
My System SpecsSystem Spec
13 Mar 2012   #8
gregrocker

 

Are you saying you have an EFI BIOS and are still using MBR disk? Have you installed this way?
My System SpecsSystem Spec
13 Mar 2012   #9
FuturDreamz

Windows 8 Pro (32-bit)
 
 

Quote   Quote: Originally Posted by gregrocker View Post
Are you saying you have an EFI BIOS and are still using MBR disk? Have you installed this way?
pretty much. I can boot up using EFI, but my MOBO is set to use BIOS.

Oddly enough, the interface it completely text driven. if it wasn't for EFI compatibility, I'd be positive that it's a normal BIOS.
My System SpecsSystem Spec
13 Mar 2012   #10
bobkn

Windows 7 Pro X64 SP1
 
 

Quote   Quote: Originally Posted by gregrocker View Post
I don't have any EFI mobos yet and haven't heard of any performance advantage. We only see installation problems here as EFI mobos start coming to the fore. So, like RAID, it is problematic with WIn7 installation.

If you choose to test this, please let us know what you find.
I've installed Win7 on a few UEFI motherboards. They were from Asus, and offered UEFI and non-UEFI mode boots for the install media (in my case, a USB flash drive). I chose non-UEFI, and the installation always proceeeded normally. (My boot drive was a 120GB SSD in all cases, and the largest data drive was 1.5TB.)

I definitely get a full mouse driven GUI for the CMOS settings, on all systems.

FuturDreamz seems to think that there's something different in the two installations, beyond GPT vs MBR. I thought that they were the same, excepting GPT. What's correct?
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 Should I reinstall my computer to boot with UEFI?




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