The Unified Extensible Firmware Interface BIOS (UEFI) is a specification that defines a software interface between an operating system and platform firmware. UEFI is a replacement for the older BIOS firmware interface present in all IBM PC-compatible personal computers

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503 views

Prevent Windows 10 installer from using the preinstalled serial key without disabling UEFI

My laptop (a Lenovo Flex 2 15) came preinstalled with Windows 8 Standard (with the serial key preinstalled into the BIOS), and I've since installed an SSD (a Samsung Evo 840 120GB) & upgraded to ...
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1answer
63 views

UEFI mixup with previous windows 10 disk on Lenovo

Intro I am asking the same question as I asked on askUbuntu (but did not get feedback). References: http://askubuntu.com/questions/714839/uefi-mixup-with-previous-windows-10-disk-on-lenovo Question ...
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0answers
31 views

Can I upgrade my BIOS(LENOVO DPK21A) to UEFI? [duplicate]

I have a Lenovo Ideacentre K330B running Windows 10 Home and I want to change it's BIOS to UEFI. It has a Lenovo motherboard. Here are some specs - BIOS Version/Date: "LENOVO DPK21A, 8/8/2011" Bios ...
0
votes
1answer
156 views

How to cleanup EFI boot list

I'm reinstalling my OSes multiple times trying to setup a dual boot and my motherboard boot list starts to get ugly : 2 entries Windows boot only one works, 2 entries for linux and none work. How to ...
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0answers
137 views

Cannot boot DVD or USB (Samsung Laptop / Aptio BIOS)

I hope this is the right place to post this. I have a Samsumg laptop where I need to reinstall Win7. It's a Slackware/Win7 dual boot (with LILO) and at some point Windows failed some security ...
3
votes
0answers
72 views

A UEFI entry is corrupt. How do I fix it?

I uninstalled Windows 10 from my triple boot setup to be left with dual boot but the UEFI entry for it stayed after I removed the drive, so to remove it I used easyUEFI to remove the entry but it just ...
0
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2answers
50 views

Totally remove Windows 8.1 from Toshiba Satellite laptop

I have a legacy app that will not run under Windows 8.1. I want to load Windows XP but need to totally wipe out Windows 8.1. I have tried going into advanced settings in the BIOS and changing UEFI to ...
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0answers
2k views

Does unetbootin work in win 10 with UEFI mode?

I would like to install Ubuntu 15.10 using unetbootin and no usb key -thus using unetbootin with Hard Disk (frugal) install mode. However nowhere in the documentation could I see if unetbootin will ...
0
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1answer
18 views

Cancel Boot Camp automatic boot

I wanted to install Windows using Boot Camp, I gave it the ISO image and partitioned the disk but decided not to pursue after reboot. Now everytime I power up my MacBook Pro it automatically boots to ...
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0answers
59 views

Windows 10 boot error

I recently created a bootable USB it using Rufus on a Windows 10 laptop in order to install Windows 10 add alongside Ubuntu for a dual boot on my desktop. I created the USB in Fat32 format. My empty ...
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0answers
56 views

Why isn't my system booting in UEFI mode?

I recently attempted to install Windows 10 as a dual boot alongside Ubuntu 14.04. I used WinUSB to create a bootable drive. I booted into the USB, but when I attempted to select the empty NTFS ...
0
votes
1answer
97 views

UEFI firmware corrupt? Neither ethernet nor wireless controller detected anymore

The problem My computer is a 64-bit Acer Apsire V5-572G currently running with Arch Linux. I wanted to use some programs that dont run with Wine. So i set up a Windows-To-Go on an external hdd. Upon ...
0
votes
1answer
351 views

How to enable usage of both onboard and dedicated graphics cards?

When I bought my computer a year ago, I somehow managed to change some setting(s) to allow me to use both graphics cards at the same time. Recently the dedicated one flamed out, so I took both my ...
3
votes
1answer
44 views

Is it possible to select which system to boot before rebooting, on a multi-boot UEFI system?

I'm wondering if there's a way to have a computer with UEFI and two different OSes installed (Windows 10 and Linux Mint 17.x in my case) where you don't have to wait for the system to shut down in ...
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0answers
24 views

Zotac Nano uses lots of power while on standby and accesses USB stick - why?

I have a Zotac Nano mini PC with a UEFI firmware here. I have noticed that when on "standby" it consumes a few Watt of power. To illustrate: We start with the power supply disconnected (the power ...
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0answers
35 views

Upgrading a USB installed Windows 10 on a Mac

I have Windows 10 installed on external SSD connected to my MacBook Pro 13 trough USB. I'm trying to upgrade Windows 10 and I keep getting an error "Windows can't be installed because this PC has an ...
1
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0answers
154 views

Why does the FreeBSD kernal crash on UEFI boot?

I recently downloaded the FreeBSD 10.2 distribution from the official website; I used the 'FreeBSD-10.2-RELEASE-amd64-uefi-memstick.img.xz' file. I used MS ImageWriter to image a USB and proceeded to ...
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votes
2answers
89 views

Not seeing Boot order change Option

I'm trying to install Ubuntu in my Dell Inspiron 5548 laptop and its giving me real stomachaches! Windows 10 is in UEFI mode. So I have to install Ubuntu also in UEFI mode. As such, I disabled ...
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3answers
2k views

Windows 10 Can't Install from USB Disk to UEFI

I recently put an SSD in my computer. Today, I tried to install Windows 10 to it using an installer disk, and it caused the operating system on my HDD (also Windows 10) to be unable to boot. (Also, ...
0
votes
1answer
179 views

Windows 10 PC always boots to BIOS after failed Ubuntu dual-boot setup + using boot-repair tool - OS reinstall?

I bought a PC with Windows 10 on it, which has a SSD and HDD drive. I attempted to create a multi-boot setup with Windows 10 and Ubuntu 14.04 (the Windows folder is on the SSD, and I wanted the Ubuntu ...
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3answers
123 views

Do I have to reinstall UEFI Windows in Legacy to dual boot with another Windows in Legacy?

I currently have Windows 10 in UEFI installed on my laptop and I can't install Windows 7. I want both OS in dual boot but I can't get the boot USB to work properly in UEFI. I then proceed to disable ...
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1answer
859 views

Multi-Boot: How to repair Windows 10 boot after Linux Mint upgrade?

I have an triple-booting iMac (Linux Mint, OSX, WINDOWS 10) with rEFInd installed. The following partitions listed using sudo gdisk -l in Linux Mint 17.3: Number Start (sector) End (sector) Size ...
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2answers
4k views

What happens if you delete all secure boot variables?

I am attempting to install Kali Linux alongside a preinstalled Windows 10. Secure boot restricts me from booting from USB, so what happens if I delete its variables?
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0answers
5 views

Gigabyte P34V3 UEFI not allowing secure boot to disabled (FB04) [duplicate]

I'm trying to dual boot Kali Linux and windows 10 at the same time, but the usb I'm trying to install from is not signed with a uefi cert. I found on the web that you should delete "all boot ...
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votes
2answers
164 views

Make Windows bootable in both UEFI and Legacy mode?

Some days ago, I installed Windows 10 to a new HDD. Afterwards, I found two boot options in firmware: (1) HDD, (2) UEFI - HDD. I thought the former is boot in legacy mode, the latter is boot in UEFI ...
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0answers
248 views

Can I convert a BootCamp Windows installation for UEFI booting?

I had a MacBook Pro 13" 2012 model. It was configured to dual-boot with a BootCamp Windows 10. Recently I moved the stock 500 GB HDD to the optical bay and Windows wouldn't boot anymore, as was ...
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2answers
892 views

When UEFI/(Motherboard Firmware), is set to UEFI(not legacy), USB is not detected

When UEFI/(Motherboard Firmware), is set to UEFI(not legacy), USB is not detected When set to legacy, it is detected. It goes without saying that I can't boot from it when the UEFI is in UEFI mode. ...
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1answer
1k views

ASUS Rampage IV Extreme Debug error code 79 and 5A

While working on Windows 10, my desktop computer suddenly rebooted itself and stops to display a POST screen. Computer was running on low profile and has never been overclocked. Computer ...
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2answers
839 views

Configuring UEFI dual BIOS to boot from SSD and access a secondary HDD

Up until recently I've been happily running a (pre-built) Windows 7 Pro box with the following: Gigabyte Z77-D3H motherboard (UEFI Dual BIOS, vF19b) Crucial M4 SSD (120Gb boot drive) Western Digital ...
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votes
1answer
1k 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-...
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votes
1answer
277 views

*VERY* slow boot after changing from MBR to GPT - need to rearrange partitions

I recently changed from MBR to GPT and now my system takes over an hour to boot. I suspect a partition arrangement problem. I'm running Windows 10 on a RAID 5 array. Here is my current partition setup:...
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3answers
806 views

Trying to understand linux support for 4TB hard disk drive on legacy BIOS

I want to add a 4TB hard disk drive for data storage only. My current configuration: Intel Server Board S3210SH (Legacy BIOS, 2009/05/22) Running Arch Linux. Installed in a Crucial 512MX SSD ...
0
votes
1answer
64 views

How to boot from USB flash via EFI?

I have setup the following partition table on flash-drive: Disklabel type: gpt Device Start End Sectors Size Type /dev/sdb1 2048 34815 32768 16M EFI System /dev/sdb2 ...
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0answers
84 views

Unable to boot Microsoft Surface Pro

I have been given a Microsoft Surface Pro to fix. When you try and turn it on you can see the Surface logo and a series of dots spinning in a circle and that is it. It will sit like that for hours ...
0
votes
1answer
34 views

rEFInd lists extra boot options and trying to remove them isn't working

I just got Ubuntu 14.04 to dual-boot with Windows 8.1 (it was quite the process). Anyway, I wanted to use burg instead of grub2 as the boot loader, but that wouldn't work with UEFI, so I am trying to ...
0
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1answer
61 views

Can't boot Windows 8.1 after update

I'm using linux for my day to day use. Thing is, I don't recall having any problem with my windows installation. It might be that I installed some updates and didn't restart, simply powered off and ...
0
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0answers
59 views

How can I make a separate boot partition in Windows 7?

I've got an old computer running Windows 7. Windows is installed in BIOS-MBR mode. In the course of trying to dual boot Linux on it, I found that Windows 7 is stored on one partition, with the boot ...
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0answers
18 views

UEFI Dual boot: can't see GRUB. In legacy mode boots Linux, in UEFI mode boots Windows [duplicate]

I have a UEFI laptop that came with Windows 7. Now I want to add Linux Mint 17, putting it in dual boot. I put my PC in Legacy Mode instead of EFI mode, shrunk Windows partition and installed it by ...
0
votes
0answers
205 views

Ubuntu Linux won't start alongside Windows 10

Windows 10 pro is upgraded from windows 8.1 pro. I just followed this(https://www.youtube.com/watch?v=fE8XvuhyaaA) tutorial to Install Ubuntu. After successful install I unable boot into linux. I ...
0
votes
1answer
107 views

Cant Choose USB Boot From BIOS/UEFI

I have Philips 32 GB flashdisc. (FM32FD75B/97) When i enter boot options, i cannot see my device. I tried it with 1 desktop and 2 laptops and result is same. I also used Rufus/Unetbootin and Ubuntu ...
0
votes
2answers
72 views

How much room do windows 7-10 occupy on the UEFI System Partition­?

How much space do Windows 7-10 actually occupy on the UEFI System Partition (ESP)? my reasons: I'm installing Linux on a new computer with a blank hard drive. I would like the option of installing ...
2
votes
0answers
142 views

SSD causes UEFI to load very slow on reboot (~15 sec)

I've recently bought an ADATA Premier Pro SP900 128 GB M.2 . It works fine , it's fast , but I have one issue with it . When I start the laptop , UEFI loads fast in a second or so , goes to my ...
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0answers
73 views

How to enter bios after unsuccessful windows 7 installation attempt?

I had Windows 10 on my computer and it was corrupted (couldn't connect to the internet). I decided to install Windows 7. Everything was fine up until it had to reboot mid installation. Then it asked ...
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0answers
87 views

Can't install Win 8 Pro on laptop due to BIOS keys

I have a Dell laptop installed with Win 8 (home) edition. A while ago I bought a copy of Win 8 Pro to install on the same laptop. Yesterday I attempted to install the Pro edition, but it didn't ask ...
0
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3answers
811 views

How to fix EFI-boot on my Macbook Pro after Linux install crashed?

After trying to install Linux (CentOs) and it crashed I can no longer boot W10. I can only choose OS X and its recovery after the alt option key.... The EFI partition is renamed to blank / NO NAME, ...
0
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1answer
35 views

Shuttle SZ87R6 with 3x SSHD 2TB hard drives doesn't boot

Hardware: 1x Shuttle SZ87R6 with 500W power supply 1x Intel i7-4790 4x G.Skill 8GB, DDR3-1600, CL10-10-10-30 (F3-12800CL10S-8GBXL) 1x Samsung SSD 850 Evo 250 GB (With linux openSuSE 13.2) 3x Seagate ...
0
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1answer
77 views

BSOD on Win 7 Downgrade ASUS F551C Laptop

I have an Asus F551C laptop that came with Windows 8.1. I used GPARTED to remove the GPT partitions and then created an NTFS partition and installed Win7 with no problems. I then ran updates and ...
0
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2answers
55 views

i have changed some settings in BIOS,like i disabled boot options,now my system is turning off immediatly

i have changed BIOS settings,like disabled boot options,disabled,i have disabled boot settings,now my system turning off immediately without showing anything on the screen,,how should i enter into ...
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2answers
927 views

How to repair a Windows Boot loader damaged by GParted?

My notebook has two disks (there is a third disk -/dev/sdb - that is cache for the second disk). Windows 10 is on the second disk (/dev/sdc) (SATA ODD) and was working very well until today. Ubuntu ...
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1answer
56 views

Boot problems (UEFI)

I have two drives, one is a HDD, it has windows 7 and an EFI partition the second is an SSD it has some EFI files and the BCD. Whenever I plug the SSD in, the PC always boots from the SSD, in which ...