Skip to main content

All Questions

Tagged with
21 votes
7 answers
86k views

How to tell if the Windows Installer boots in EFI or BIOS?

I have a Windows 7 x64 install USB and want to know if the installer has booted into EFI or BIOS mode. I found a solution here, but it doesn't work since notepad couldn't find: \Windows\Panther\...
Duong Thang's user avatar
7 votes
5 answers
23k views

I get a red bar when trying to install windows 7 DVD, and it freezes

I get a red bar when trying to install windows 7 DVD, and it freezes. I read here https://social.technet.microsoft.com/Forums/windows/en-US/aee2b86b-ab1d-409a-b8ca-e0f6a4c90b3c/windows-7-pro-...
barlop's user avatar
  • 24.3k
17 votes
7 answers
86k views

How to move an existing installation of Window 7 64bit to UEFI (from legacy)

I have a laptop that has Windows 7 64 bit Enterprise edition. It is already filled with plenty of Software and drivers. The laptop (Dell E6220) supports booting through UEFI, but the insatllition was ...
Ran's user avatar
  • 173
50 votes
2 answers
510k views

What is CSM option

What is the CSM option in BIOS? If I can't boot into Windows any more, is it because CSM is disabled? Would an ASUS K55 come with this option diabled?
Ken's user avatar
  • 509
8 votes
2 answers
80k views

After Windows 10 upgrade I can no longer access BIOS

I posted a question recently regarding my Windows 10 upgrade which ended up with a black screen and cursor. QUESTION I reverted back to Windows 8.1 using the "Revert to previous build" option in ...
djtwigg's user avatar
  • 251
30 votes
4 answers
283k views

What exactly is "UEFI with CSM" boot mode?

Under this question, I was told that "UEFI with CSM" is essentially BIOS mode. It made me quite confused because what I've learnt over the years is far from that. As per my observation, I think CSM ...
iBug's user avatar
  • 11.3k
15 votes
2 answers
22k views

Is a hybrid Linux USB-Stick for UEFI & legacy BIOS possible?

my idea is to create an USB-Boot-Stick with Lubuntu that is able to boot on an older BIOS Laptop and an newer UEFI Systems. This would be quite easy, when the Stick would be setup as a legacy boot ...
Jook's user avatar
  • 1,905
10 votes
6 answers
109k views

SATA Devices not showing up when in UEFI mode

I'm trying to install Windows and the bios should be set to UEFI mode. The problem is that all SATA devices aren't showing up (shows as if there aren't any) so I can't boot from the installation CD (...
Dan Barzilay's user avatar
2 votes
2 answers
2k views

Computer BIOS boot with UEFI

I recently bought a refurbished Dell Optiplex 7010 tower and I upgraded the BIOS version of the computer to a recent one released in 2018 {A29}. So I read some graphics card are not compatible with ...
Dong Li's user avatar
  • 261
2 votes
2 answers
8k views

Gigabyte GA-Z77X-D3H MB problems

I installed a new system last week. I've some issues with it. The system consists of a: Gigabyte GA-Z77X-D3H with F9 BIOS (latest) Intel Core i5 3570K proccesor Sapphire Radeon HD7850 2x 8GB ...
Hans's user avatar
  • 209
1 vote
1 answer
394 views

why arcane legacy steps to boot from USB with GPT and UEFI?

To run the live AVG rescue "disk" on USB for Windows 10, how is it made to work with a GPT and UEFI system? (Possible solution listed below.) I enabled the boot menu so that pressing F12 will ...
Thufir's user avatar
  • 1,650
20 votes
1 answer
4k views

What hardware device used to eat up 1.4GB of my 4GB RAM, and now suddenly after no hardware changes eats up 2.2GB?

This is more or less a continuation of What hardware device eats up 1.4GB of my 4GB RAM? While I have more or less accepted the solution there that for some mysterious reason, after a BIOS upgrade ...
mihi's user avatar
  • 3,437
19 votes
1 answer
103k views

How do I "Boot to UEFI shell"?

I am trying to follow some instructions to update some firmware: x64 UEFI environment: Boot to UEFI shell Run update.nsh I don't know how to do this. When I boot, do I have a choice to boot to UEFI ...
SeanClt's user avatar
  • 2,237
16 votes
5 answers
24k views

Do hard drives need a GUID partition table (GPT) to boot in UEFI mode?

Is EFI booting something hardware specific? I have a desktop motherboard with a UEFI Bios, but I can only boot from USB drives in "UEFI" mode. Both the DVD drive and the HDD's (a RAID 0 array) boot ...
joaocandre's user avatar
14 votes
1 answer
73k views

System found unauthorized changes on the firmware

I have a PC with an Asus motherboard running Windows 7 Pro. Yesterday I installed latest Windows updates, restarted, and shortly afterwards hibernated the machine. This morning on un-hibernating I ...
Nick Baker's user avatar

15 30 50 per page