All Questions
221
questions with no upvoted or accepted answers
4
votes
3
answers
9k
views
Lenovo G505s and "Default Boot Device Missing or Boot Failed."
I am Using Lenovo G405s and running Windows 8 on my laptop, and whenever I turn on the laptop this error pops up -
SATA HDD : WDC WD5000LPVT-24G33T1 boot failed SATA ODD :
MATSHITA DVD-RAM ...
- 106
3
votes
1
answer
250
views
Changing Apple EFI for Xeon microcode
I have Mac Pro 3,1. I have just bought 2x Xeon E5450 SLBBM E0 stepping and found that there are unsupported by my Mac Pro.
I tried to google for this problem and found that only SLANQ C0 stepping ...
3
votes
0
answers
794
views
How do I change UEFI boot order when the BIOS (the firmware) does not have that option?
I want to change the boot order to default to rEFInd but the system always boots to Windows 10 and I have to use F10 method to boot into Linux via grub and rEFInd. I want to boot into rEFInd by ...
3
votes
0
answers
4k
views
How to install Ubuntu on Odys Winbook 14 - USB booting via uefi not working
I couldn't figure out yet how to install Ubuntu on an Odys Winbook 14.
Stats:
Intel® Celeron® Quad Core Processor with up to 4x 2,2 GHz Burstspeed
35,56 cm (14") 16:9 Full-HD IPS Display (1.920x1....
- 131
3
votes
0
answers
1k
views
Laptop not booting from any bootable device (UEFI broken?)
I was trying to install Debian in a dual boot with the already installed Windows 10 on my laptop. Now when I boot up the PC it shows the Dell logo and the options to press F2 for Setup and F12 for ...
3
votes
1
answer
8k
views
how to disable hard drives in UEFI bios?
sometimes I need to disconnect a hard drive. I have to open my computer and unplug the sata power cable.
I am wondering if its possible to disable the hard drive in UEFI bios.
I am using asus p8p67 ...
- 255
2
votes
1
answer
317
views
My UEFI doesn't boot normally after a normal CMOS reset
It started with my computer hanging at the posting screen (the HP logo with a text under it that says: "protected by hp sure start"), it kept hanging for MINUTES before it goes to boot my OS....
2
votes
1
answer
2k
views
Restarts boots into BIOS. Turn off/on boots into Linux
On a fitlet-H PC I have installed a brand new SSD SAMSUNG 870 EVO 1 TB. I have tried installing both Linux Mint and Ubuntu MATE and I have the same boot issue.
If I turn off the PC and then turns it ...
- 21
2
votes
0
answers
525
views
Linux freezes on reboot. Requires BIOS change to windows8 from win7
I use an Intel celeron J1900 based Nano-itx board (http://www.qotom.net/product/17.html ) which runs ubuntu linux. When reboot command is typed on console, the system freezes after few seconds. The ...
2
votes
0
answers
958
views
Custom Secure Boot keys not working
I successfully installed Debian Stretch on my ASUS G750JZ laptop with Secure Boot turned off. Now I'm interested in enabling it, so I created my own PK, KEK and db keys and uploaded them into my BIOS. ...
- 21
2
votes
0
answers
2k
views
Booting from USB/CD on Lenovo y510p
I forgot my windows 7 password on a Lenovo y510p laptop. I'm trying to boot from CD, in order to reinstall the OS or boot from USB to reset the password. Both options fail because of EFI security ...
- 121
2
votes
0
answers
567
views
Bootloaders - Booting an MBR only OS using a UEFI only BIOS
A long time ago, in a computer lab far far away, I stumbled upon a bootloader which dared to cross the boundaries between MBR and EFI.
It's name was Clover.
Using clover, you could boot any number ...
- 897
2
votes
0
answers
5k
views
Booting SD card from UEFI
I've come across the problem.
I'm trying to boot a bootable SD Card using UEFI.
However, this doesn't work, as there is no "SD Card" boot option AFAIK.
I have tried putting all the USB-related ...
- 21
2
votes
0
answers
2k
views
Boot from CD using UEFI instead of BIOS
I have a Lenovo IdeaPad Y510P. This is my last attempt at recovering my computer, as my recovery partitions are gone and I cannot boot into my computer otherwise. I have Windows 8 x64 OEM installed. I ...
- 41
2
votes
0
answers
752
views
Extract Samsung OEM recovery from laptop HDD
I have a Samsung NP540U3C with Windows 8. I recovered it to factory condition, booted and it was fine.
There were 107 Windows updates so I downloaded and installed them, rebooted and then I was ...
- 324
2
votes
0
answers
3k
views
How can I boot to DOS with a UEFI BIOS? (re: updating BIOS)
I have a Supermicro X9SCM-F motherboard and I'd like to upgrade the BIOS because I'm having trouble installing Windows 8.1 (and apparently I'm on a very old BIOS).
However, I can't seem to boot to ...
- 1,235
2
votes
0
answers
2k
views
Dual boot Windows 7 on pre-installed Windows 8 laptop
I have a newer HP laptop with preinstalled Windows 8. I want to dual boot Windows 7 with it, but am unable to boot to the USB. To start with, I downloaded an .iso from Microsoft that I then copied ...
- 101
2
votes
0
answers
283
views
System does not work anymore after migrating to UEFI
I have recently updated my BIOS to UEFI (big mistake...). When I boot in Windows 7 x64 now, it does not recognize any USB driver (even mouse and keyboard).I tried to use Windows Repair Disc to Restore ...
- 187
2
votes
3
answers
6k
views
turning on secure boot gives only a black screen
I have installed Windows 10 with secure boot off and now I want to install Windows 11. So I turned secure boot back on but, only a black screen shows after computer boots.
What I see - I can see POST ...
- 130
1
vote
0
answers
141
views
Move From Legacy to UEFI
I recently installed Fedora 39 on my system, but I only later realized that I did so in Legacy BIOS mode. Now, I'd like to switch to UEFI boot mode without having to reinstall the entire system. Is ...
- 11
1
vote
0
answers
96
views
Where to put payload on UEFI partition for it to be processed during boot (for firmware update)?
I've found out many (most?) firmware require a reboot to be updated and the way it works is new firmware data is put on UEFI partition (I've got an error of ~ "cannot find UEFI partition" ...
- 199
1
vote
1
answer
121
views
Dell BIOS, different boot entry after Auto-On-Time event
I want to make use of the Auto-On-Time feature in my Dell Latitude E7250. This feature sets the time of day when the system will turn on automatically. Is it possible to mod the BIOS to allow it to ...
- 19
1
vote
1
answer
23k
views
Update AMI American Megatrends BIOS via EFI/UEFI firmware shell
I have found an used gigabyte brixx nuc style pc and wanted to try to update it's bios for testing, because some other versions has been released. The device hasn't a direct flash utility inside so I ...
- 215
1
vote
0
answers
187
views
Why the TPM PCRs does not consider a UEFI settings change? If someone resets CMOS, it's undetected
In my laptop I've set up a bios pw when I power on the laptop, and once I enter it the laptop starts my linux distro and decrypts the disk without asking any other password. To do this I've set up TPM ...
- 254
1
vote
0
answers
1k
views
Installing 32bit windows in 64bit UEFI
I have a device and a software from the 2000' that only work on 32bit windows OS. I currently have an Asus ROG GA503 that runs 64bit win11.
I wanted to run windows 7 32bit on a USB stick so that I ...
- 11
1
vote
0
answers
80
views
How do I delete an old boot option that doesn't show in bcdedit?
I converted my ssd from MBR to GPT. Now in the BIOS I have 2 boot options with the same name, which is "SSD name Boot Manager". Booting into the first boot option doesn't work but the 2nd ...
- 382
1
vote
0
answers
395
views
Grub2 commands to automatically boot from Windows (UEFI installation & BIOS firmware)
The following chain of commands works when Windows is installed in UEFI and UEFI firmware is present. If Windows is installed in UEFI and that in combination with BIOS firmware the command will not ...
- 11
1
vote
0
answers
68
views
How is display initiated after sleep mode? Does the BIOS/OS uses the EFI partition?
I'm having some weird lines displayed in my screen after my computer goes to sleep mode and when I turn it on.
These lines are displayed randomly and I think it has something to do with the EFI ...
1
vote
0
answers
145
views
Computer spontaneously suspends & resets UEFI settings to default (motherboard power issue?)
Apologies for the long question, but I have a strange collection of (hardware?) problems I can't fully figure out by myself.
The device:
My computer is an Acer Nitro 7 (Acer AN715-51-76ML) which came ...
- 211
1
vote
0
answers
1k
views
Why is my motherboard not recognising my USB stick as bootable?
I created an USB flash drive with openmediavault v6 (not the installer, I mean I put the system on it).
I can use this flash drive to run OMV on the machine (a PC with a Gigabyte motherboard). I can ...
- 272
1
vote
0
answers
507
views
Can't boot into bios Samsung NP300E5Z
I recently changed the bios settings to allow to boot UEFI so that I can install Linux. After installation I can no longer boot to bios using F2 I even tried F10 to bring up boot menu but nothing ...
- 11
1
vote
0
answers
58
views
Update Dell XPS 13 POST Bitmap Image
I have a Dell XPS 13 9360 running multiple OS's (Win10, Ubuntu and Arch) and would like to change the image displayed when the computer boots up and performs a Power On Self Test.
Currently, it just ...
- 2,428
1
vote
0
answers
125
views
ASUS Zenbook - Bootloader doesn't recognize Windows 10
I've scoured the internet trying to find a solution to this.
I've a ASUS Zenbook UX430UAR. I am not able to access the BIOS. I believe it's because I had fast-boot enabled when Windows 10 was on this. ...
- 111
1
vote
0
answers
63
views
Cant Access BIOS
I am unable to access Bios on my system. I disabled Fast startup and my Bios mode is UEFI. I need to enable Virtulization for Docker. I have tried advanced startup but still unable to access UEFI ...
- 111
1
vote
0
answers
38
views
Unable to boot from thumbdrive containing Windows setup
I just completed my build in an H510 with the following parts:
B550 Aorus Pro AC
Ryzen 5 5600X
Asus Dual OC RTX 3070
WD Black SN750 (1 TB)
TridentZ RGB 16 GB (DDR4 3600 MHz)
Masterliquid ML240L V2
G....
- 11
1
vote
1
answer
4k
views
Unable to boot gigabyte brix from Windows 10 installed on SSD
I have Windows 10 installed in SSD in legacy mode (not UEFI). I have connected it to gigabyte brix. When I turn on the Brix, its does not boot from SSD. Instead it gives me UEFI shell:
When I type ...
- 769
1
vote
0
answers
1k
views
NVMe device only being recognized by UEFI/BIOS after reboot and not during initial cold boot
I have recently installed an NVMe M.2 SSD in my desktop computer. Unfortunately, the SSD doesn't gets recognized by the UEFI/BIOS on boot.
I'm aware that there are similar questions on the site with ...
- 113
1
vote
1
answer
264
views
Cannot boot Fedora on one PC
I've problem with my Fedora 32 boot.
Firstly, sorry for my ignorance in this topic and sorry if I wrote something wrong.
What's going on?
I don't see it as bootable in my Asus UEFI BIOS UTILITY, but ...
- 11
1
vote
0
answers
2k
views
How to launch built in efi shell?
I have a Lenovo ThinkCenter with American MegaTrends (AMI) UEFI with UEFI shell v2.0.31 I think. From clover bootloader, there is an option to launch the shell and I'm able to enter it. However, from ...
- 1,941
1
vote
0
answers
7k
views
Wake up laptop on AC while UEFI (BIOS) does not have that option
Been trying to setup my external monitor + laptop to act as a desktop (both to turn on with AC). Almost there - followed this thread which was massively useful, thanks all.
Turn on Windows 10 laptop ...
- 11
1
vote
0
answers
59
views
PC won't boot to preseeded Ubuntu USB, but original Ubuntu works
I'm trying to setup several PCs with a preseeded copy of Ubuntu 18.04 LTS. So far, I've managed to use my preseeded USB drive for about 10 devices, but now I've got some older ones that just won't ...
1
vote
0
answers
582
views
Log of BIOS events for HP PC?
I have an HP EliteDesk PC and I would like to know if there is a log of BIOS events somewhere. I have not been able to find one when browsing in the Startup menu of the BIOS. Below is a picture of the ...
- 11
1
vote
0
answers
49
views
How does writing to BIOS/UEFI work?
I've been reading a lot about how BIOS works and how to avoid BIOS related attacks. I understand things like TPM, but what doesn't make sense to me is how do you actually set the processor in a mode ...
- 234
1
vote
0
answers
489
views
How to completely remove an unknown superuser password from UEFI (Acer Aspire Switch)
I have an Acer Aspir Switch 10 E or SW2-016 with Windows 10 and UEFI firmware (V1.15)
Apparently I once upon a time have set a Supervisor Password in the Security settings. Ofcourse I forgot it.
I ...
- 348
1
vote
0
answers
14k
views
How to enable virtualization (Vtx) on Microsoft Surface book
I am attempting to enable virtualization on my Microsoft Surface book. I am only able to access the UEFI, but do not know how to make any of the necessary changes there. Is there a way to enable in ...
- 11
1
vote
0
answers
1k
views
Remove duplicated options in boot options, BIOS
I have dual booted my laptop. I have multiple choice in boot options in BIOS that are duplicates. The Ubuntu option is sometimes gone when I shut down from Ubuntu. Why does Boot option keep on ...
- 25
1
vote
1
answer
5k
views
UEFI boot is disabled, disabling Legacy boot does not work
On my computer, I enabled Legacy boot to use older operating systems (even though I did not install any). A few weeks later, I could not find UEFI boot on my hard drive. I get "Notebook Hard Drive" is ...
- 533
1
vote
0
answers
2k
views
Unable to boot to BIOS screen (Uefi blank black screen)
I have recently been unable to access my uefi bios i think it is since upgrading to windows 10 but im not sure
I used to be able to access the bios fine but it was a while since i have changed my ...
- 11
1
vote
2
answers
580
views
Bios won't change any settings, I blame Ubuntu 17.10
Question posed by IT repair tech. Client's netbook.
Acer Aspire E11 (ES1-111M-C3CP)
Celeron N2840, 2GB HD, 32GB eMMC soldered on to board (non-removable).
Corrupt Windows won't boot, suspect Win10 ...
- 11
1
vote
0
answers
2k
views
bios write protection
I read that bios attacks are popular since 1998. And I want to know if I can protect my motherboard some how:
Base Board Information
Manufacturer: Gigabyte Technology Co., Ltd.
...
- 163