A bootloader is a program that loads and launches a program or an operating system from boot.

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April 2015 Windows 8.1 Update: winload.efi error 0xc000000f

I have an Acer V3-772g: Intel i7 4712MQ, NVIDIA 750m 4 GB I installed the newest Windows 8.1 updates a couple days ago; however, the update failed. I left the computer to update and then went to ...
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14 views

shell script to change bootloader background

I'm trying to create a shell script on openSUSE to change the bootloader background from the files /etc/default/grub line: GRUB_BACKGROUND=/boot/grub2/themes/openSUSE/background.png with the new ...
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15 views

How do I create the Microsoft bootloader on the EFI partition? [duplicate]

I have Linux and Windows installed in a dual boot configuration. The Windows bootloader is corrupt. I want to reinstall it using the Windows recovery partition but I do not know how to boot to it ...
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27 views

GRUB shows up unexpectedly when booting after CMOS Reset

Basically, my computer has 3 hard drives. 2 HDDs, 1 SSD. Years ago, I installed a Linux partition on one of the HDDs, but decided to move back to solely using Winodws(gaming pc) and removed Linux from ...
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1answer
11 views

rEFInd mountvol incorrect parameter

I had Ubuntu 14.04 on a single drive. Then, I felt like installing Windows 10 along side with Ubuntu. I resized the main Ubuntu partition and unallocated half of the safe. Then, I installed Windows 10 ...
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1answer
40 views

Awful beeping sound on boot

I formated the entire hard drive and installed Ubuntu 14.04 in a Macbook 5.2. Ubuntu boots decently fast, however there is a disconcerning garbled image on screen: After that Ubuntu runs fairly ...
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1answer
33 views

Moving linux boot loader(s)

I recently resurrected one of my old laptops as a home-server. I decided to get rid of the original windows install and get linux up and running. The laptop has two harddrives: One SSD (/dev/sdb), ...
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21 views

Windows 8.1 Won't Boot, Swapped Drive Letters on Disks

I bought a Dell XPS 8700 which came with a 1 TB 7200 RPM hard drive. I bought a Samsung SSD 850 Pro (128 GB) and added it to the config as the primary drive. Everything was working good, but I had ...
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70 views

Booting a BIOS bootloader from UEFI mode

I have a Linux setup that I boot in UEFI mode with GRUB. I want to try out OpenBSD, which unfortunately doesn't support GPT or UEFI yet, so I partitioned a drive with a traditional MBR table and ...
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114 views

Dualboot Linux Mint & Windows 8.1 (GRUB Problems)

I've been trying to make a dualboot configuration with Linux Mint (17.1 Rebecca) and Windows 8.1. These are the steps I followed in installing this setup: Install windows 8 Run all available updates ...
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42 views

Does Windows NT before version 4 (also) have built-in dual-boot support?

The Windows NT flavour of Microsoft Windows has had the built-in ability, without needing third-party add-on "boot managers", to dual boot with other (Microsoft) operating systems since at least ...
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86 views

Error opening BCD Registry/Windows 7

Still need help if there's anyone out there that can help me. Thank you! I have been stuck in the Windows 7 update "failure to configure/reverting changes" loop for several weeks now. Finally, I ...
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1answer
35 views

Schrodinger's Bootmngr

so. a few days ago my laptop started bsod'ing on every boot, whilst it was loading the windows kernel. after some attempts to fix it, i finally decided that it might be simpler to start with a fresh ...
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1answer
86 views

Can't Get Rid of Mac/Linux Malware or Hardware Bug

My MacBook now has a permanent back door for some hacker that I can't seem to get rid of. I even tried booting from a Linux USB stick, wiping everything including the EFI partition, but every time I ...
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21 views

Windows boot loader on a Pen Drive (Chain-loader)

I want to convert my hard disk to GPT and install windows 7. Which is now giving an error while installing. What I am planning to do is, Install the boot loader in MBR Partition of a Pen Drive. ...
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50 views

How to manually boot with grub or: how to boot a 32bit Linux OS on a 32bit only UEFI firmware computer?

I want to install a 32bit Linux (e.g. Ubuntu) on my Intel Atom Bay Trail tablet, but I fail to get it to boot. The device's firmware only supports 32bit bootloaders. There are guides that somewhat ...
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1answer
124 views

Uninstalling Hyper-V on a dual-booted machine?

I am on Windows 8.1 (dual booting with Crunchbang) and would like to remove Hyper-V. I have tried unticking Hyper-V under "Turning Windows Feature on/off" as well as typing in the command below with ...
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27 views

Choose where to put bootloader when installing Windows 8

Say I have an existing Windows 7 installation on physical Disk A (just 1 partition). I add a second physical Disk B and install Windows 8 on it. I can now dual boot and the Win 8 bootloader has ...
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1answer
59 views

rEFInd boot-manager - 'volume' as GUID?

How can I properly set a volume setting on a boot option in 'refind.conf' by using an GUID of it's partition? My current setting is but 'refind' fails telling me that the specified file was not found ...
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14 views

Run JVM From CD Instead of Installing to Hard Drive

I need to make a software application that I know how to create quickly and easily in java. But I am not allowed to install the JVM on the target machine or any other software, for reasons that are ...
5
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1answer
760 views

What is “bootsect.bak” file?

What is Bootsect.bak backup file? Is this file a copy of boot loader or boot sector? if it's a boot sector's copy, why it's needed? because MBR is a fixed sector.
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32 views

Graphical Grub/Bootloader Menu

Does anyone know of a boot loader that use graphical indicators instead of just a command line menu? (preferably grub or grub2 compatible, I don't really know much about the, or my, tech stack for ...
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135 views

Windows 7,8 dual boot- winload.exe error: “could not verify digital signature error”

I've a Asus G73Sw that has Windows7 Home pre-installed. I recently added a new 120GB SSD and installed windows 8.1 on it. Everything was fine till recently when the original Win7 on my other HDD, got ...
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22 views

Cannot restore Windows MBR

I was trying to dual-boot with Windows 7 and LMDE. I've done it before without issue, but it seems that this time around neither then MBR nor GRUB will work. I've deleted the Linux partition so that ...
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54 views

How to delete the 2nd bootloader created by EasyBCD and leave GRUB?

I have two bootloaders now; I have the GRUB and the EasyBCD that I've created before the Linux was installed properly. After reinstalling Ubuntu for the 2nd time, the GRUB came right, but now that I ...
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43 views

Can I transfer a Windows installation from one disk to another by simple file copy?

I have a virtual hard drive (.vhd file) with a Windows 8.1 installation, and a physical hard drive with data. Can I transfer the 8.1 installation from one drive to the other without re-formatting ...
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54 views

Bootloader not recognising Windows 8.1 installation

So, for some ungodly reason my computer's bootloader got corrupted, and every time I tried to boot the computer, it loaded a "Boot device not found" screen. After a bit, I installed a new Windows 8.1 ...
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1answer
23 views

GRUB disabling timeout if PC reboots too often

I have a multi-boot enabled system that has a few operating systems installed on it, and the booting of the actual OS is handled by GRUB initially. I have the following options in my boot menu: [*] ...
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21 views

grub-mkconfig generating a shell script instead of grub.cfg

I had some problems with Ubuntu installation, I couldn't install GRUB, so I installed syslinux. Syslinux also had some problems with booting, so I just downloaded and burned super-grub2-disk and ...
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2answers
688 views

Boot Acronis true image and Clonezilla ISO image alone side windows 7 , Ubuntu 14.04.1

I want to create boot menu it can be boot from my (installed OS) Windows 7 and Ubuntu 14.04.1 I can add Windows 7 alone side Ubuntu in "Grub 2" with "Boot-Repair" but i can't boot Clonezilla and ...
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112 views

How to recover windows 8 after accidently installed Kali linux

I have accidently installed Kali Linux 1.0.6 from pendrive on my windows 8 PC. i can still see the icons of my installed programm on my windows 8 but cant access them. Now I want to get back my ...
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64 views

How to only install Windows' Bootloader on a partition?

My plan is to do a Native Boot -which is more a powerful version of Boot to VHD- setup, but without having an extracted bootloader from the "guest". This is because I don't want to depend on an UUID ...
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28 views

Repairing windows loading

Recently I installed windows 7 on my laptop.Now windows works fine,but I do not know why before windows loading,I see this list of options: I tried to remove this step according this page,by using ...
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2answers
368 views

Windows 8.1 using Win7 style bootloader after boot entry change in EasyBCD

I recently installed Xubuntu in a dual-boot environment with Windows 8.1. Following this guide I was able to use the Windows 8 bootloader instead of GRUB to boot into Xubuntu. However, recently I ...
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92 views

Windows 8.1 EFI Graphical Bootloader: Change OS Thumbnails

I've just used EasyBCD to tweak my Windows 8.1 EFI graphical bootloader, adding entries for Windows XP and Ubuntu. Both of them have a boring thumbnail of a window, while Windows 8 has a thumbnail of ...
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264 views

Multiboot by UEFI boot manager for Win8.1, Mac OS X and Linux

I am trying to build a hackintosh and want to multi-boot 1) Windows 8 2) Mac OS X and 3) Linux. Each OS will be installed on their own harddisk. If the motherboard and display card are fully ...
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2answers
145 views

Windows 8.1 cannot be started from grub2

today I decided to use linux again after installing Windows 8.1... I've tried to boot one of the already existing Linux partitions on my computer but I wasn't successful. So I installed PinguyOS (A ...
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1answer
36 views

Does msconfig's boot setting show for Windows Bootloader entries?

I noticed on msconfig a boot tab. Currently, it has just one entry--Windows 8.1. If I were to dual boot Ubuntu into the computer, and use Windows Bootloader as my bootloader instead of GRUB, using ...
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102 views

winlogon.exe corrupted. Regular fixing methods do not work

In the morning, when I switched on my computer, I was faced with an error saying that winlogon.exe is missing or corrupted. I logged on to my USB OS and replaced the winlogon.exe on the computer ...
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1answer
238 views

Grub2: “Invalid partition table!”

I have recently had to change bootloaded from my old syslinux to GRUB2. Since I have installed GRUB2 bootloader I am getting the following message on every boot: Invalid partition table! The ...
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1answer
61 views

Best first steps for a hard drive?

I volunteer my time to service my schoolmates, fixing their problems, but conversations have come up about surveillance and hacking. I've been watching DEFCON's videos, and have learned that even ...
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198 views

Boot Ubuntu, Windows 8.1, and Windows 10 Technical Preview with Grub

On my computer, I have two hard drives: one that contains Windows 7, and another that has Ubuntu, Windows 8.1, and Windows 10 Technical Preview. When I turn on my computer, Grub prompts me to select ...
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84 views

How to copy a MBR to usb flash drive and boot?

I am trying my own bootloader from pen-drive . Using 64-bit ubuntu-14.04 , and legacy boot option , here are the steps I have done. 1) Assembly program test.S .code16 .text .global _start; ...
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2answers
73 views

Windows 7 is taking too long to load

When I turn on my computer (Windows 7) the operating system is loading for 10 minutes. The following screen is displayed for the first 9 minutes: How do I fix this?
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20 views

rEFInd loads to splash screen, no HDD activity

I've installed rEFInd manually on Windows as was described on the official guide. However, when I hit F12 as my computer boots up and select "rEFInd Boot Manager", it refuses to load it. Instead, it ...
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25 views

How to install extlinux as the bootloader

Of all the extlinux/syslinux document that I read, all say that to install extlinux as the bootloader, it is as simple as: extlinux --install /boot/extlinux However, I always feel that something ...
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151 views

How to find a folder listed in my grub menu.lst

A friend gave me a USB stick that he had setup with a lot of useful utilities (like Hiren's Boot CD, an Ubuntu distro, a lot of hardware testing tools, etc). I want to update the version of Hiren's ...
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142 views

How can I fix GRUB on this dual disk setup?

I am dual-booting Windows and Ubuntu. The machine has two hard disks, both OSs are installed on sda (an SSD), but sda's bootloader uses UEFI and goes to Windows, whereas sdb has GRUB and boots to ...
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3k views

Can't boot from CD/DVD ROM: HP 650 Laptop

I'm attempting to load Windows 7 on a HP 650 laptop. When I'm in the Boot Manager, I should be able to select the CD/DVD ROM to boot from, but that option is not available. Here's what I do, Power ...
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61 views

How to restore the Windows MBR

I have a Toshiba Satellite L505D-S5965 with Windows 8.1 Pro and Ubuntu dual-boot, and I can't restore the Windows 8.1 bootloader with EasyBCD. When I use EasyBCD it always says "Missing Operating ...