Windows 7 UEFI Install?

Is it possible? I've wasted quite a bit of time trying to figure this out. Doesn't seem possible...

 

Sure hope somebody answers. I'd like to do it also.

 

Yes I have run a uefi windows 7. It's the same proceedure as 8 you just can't get secure boot obviously.

 

With many OEM machines you have to disable UEFI boot due to the SLIC, but with Clevo that's not the case. So yes: you can use Windows 7 with a UEFI boot.

 

Really? I spent literally like 19 hours trying to do it and I'm pretty tech savvy. I've tried USB and DVD. No go. I get this no matter what I try:

Code:

File \EFI\Microsoft\boot\BCD
Status: 0xc000000d

I finally just said f it this isn't worth it and installed normally. I've scoured the internet and every time someone runs into this problem, they've given up because nobody can figure it out. Sevenforums has a 25-page thread devoted to it that I wasted my time reading, because in the end, the people there couldn't figure it out and the guy asking for help just gave up.

I'm talking about a Sager machine.

Prostar in this thread, you said it can't be done without modifying the stock BIOS:

http://forum.notebookreview.com/sager-clevo/728140-sager-np8270-windows-7-uefi.html

Prema said the same thing in this thread:

http://forum.notebookreview.com/sager-clevo/724628-sager-np9150-uefi-windows-7-problem-2.html

Is there someone here that's actually done it on the new 82xx Sagers?

 

I know it can't on W230ST without a modded BIOS.

 

Well in the end with windows 7 there really is not much of a difference.

 

That's subjective.

Even if there was only a 10ms difference in booting, I still want the option.

Anyway, I contacted my reseller, and he said that Windows 7 is not natively compatible with UEFI (at least in Clevos/Sagers). You need to enable CSM which simulates the way Windows 8 would do it, but if that option isn't there in the BIOS, it can't be done.

 

I should have elaborated more: OEMs tend to utilize the SLIC, which hard codes the Windows 8 key into the BIOS. Under those circumstances you cannot install Windows 7 within UEFI. Clevo machines don't lock the computer down with that same SLIC/OA 3.0 feature, but you will need the BIOS mod nonetheless. So it's doable, but requires a little tweaking.

 

Mods for Win7 UEFI in my sig...running my W230ST with a Win 7/8.1 UEFI dual boot, no problems. :hi2:

 

D'oh and I was just thinking about doing this to my 8250-s as I just noticed that it was setup as legacy mode... which then brings up...b(Actually it was more like trying to find a relatively reliable way to do a more or less in-place conversion from legacy/MBR -> UEFI/GPT...)

Any plans for a 157SM modded BIOS soon? As I'm going to guess that it's likely the same deal as with the W230ST, although I ordered the 8250 w/win7 v. 7330 w/win8...

 

Heh, he will be working on it as it is a popular machine but he is only one guy

 

Hi.

Can you describe how to create a USB stick that will work ? And what options should I set in (newest) BIOS? I have tried two sticks with RUFUs with multiple combinations of options without any luck

Best regards.

 

I have Windows 7 UEFI but at the start of boot it displays Vista loading bar rather than Windows 7's original logo. I have installed UEFI with CSM. Do you have any ideas why I can't get proper Windows 7 logo?