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

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Kali Linux and Win 7 dual boot, I want to change the active partition and bootloader, not sure in what order

I created a partition for Kali Linux and a Live USB. I used the Live USB, was intrigued by what I saw ( first time ever seeing Linux ) and chose to install but the install wouldn't complete. Several ...
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239 views

Windows 8.1 EFI partition rebuild not working

It all began when I deleted the partition of an old Linux that was dual-booted with Windows 8.1 UEFI. This Linux system was using the Grub2 bootloader and was installed on a secondary disk. After ...
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1k views

Ignorable errors 0xc0000017 and 0xc0000018 on boot

Most (but not all) of the time when I boot my desktop system I get a Windows boot error after POST. The error code is 0xc0000017. When I press enter to "retry" I get error code 0xc0000018. When I ...
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1answer
256 views

duplicate entry in boot manager

after cloning HDD to SSD and fixing the dreaded 0xc0000225 error (using this How can I repair the Windows 8 EFI Bootloader?) I have now two identical options while booting OS Windows Server 2012 R2 ...
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191 views

Dell E6410 UEFI

I'm having problems with my laptop using UEFI. What happens is, I can boot a UEFI operating system only if I go into boot options and manually select it. It will not automatically boot into any UEFI ...
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1answer
350 views

PC won't start after editing fstab

I have a box with Intel P5LD2-X/1333 motherboard. I installed 2 GB RAM. The box was working as it should, no problems basically. I installed Ubuntu 15.04 on it. After editing the fstab file, I tried ...
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96 views

Unchaining grub2 and windows bootloader(s)

I would like to find out if it is possible to unchain grub2 and windows boot-loader and I could not find a convincing answer anywhere, perhaps it is just not possible... The situation is as follows: ...
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1answer
285 views

How do I force GRUB to keep video mode after switching to the OS?

I use GRUB as a bootloader for my custom OS. I want it to enter graphics mode for me so I don’t have to do it myself in my system. However, before GRUB passes the control to the OS, video mode is ...
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1answer
104 views

How to change to grub bootloader from windows bootloader

I have ubuntu, linux mint and windows 8 on my computer. A few days ago my windows installation failed, so I reinstalled it on the 500GB partition. My hard drive is 1TB. Windows is 500GB, Ubuntu is ...
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138 views

Triple boot 3 OS's on 3 separate SSD's

I am attempting to set up a system with 3 separate OS's (Windows 7, 8.1, and 10 TP) all on three separate SSD's. I can currently boot into each one if I use a boot override via the UEFI BIOS on my ...
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187 views

Booting ubuntu and windows acer aspire s7

i have an acer aspire s7, and have been trying to dual boot ubuntu and windows on the same system unsuccessfully: 1 I am having problems getting the aspire s7 to recognise my bbot usb drive then also ...
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528 views

GRUB Bootloader not loading

I had 2 partitions Partition 1 - Ubuntu Partition 2 - Empty So I installed Windows 8 on 'Partition 2' and now I can't load the Ubuntu OS as it directly loads Windows. How do I get back the Grub ...
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1answer
3k views

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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1answer
136 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
843 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
179 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
68 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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2answers
750 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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347 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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74 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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759 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
40 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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2answers
566 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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90 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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238 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
207 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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1answer
428 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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7k 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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144 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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1answer
811 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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1answer
456 views

How to safely delete the second 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 second time, the GRUB came right, but now that ...
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146 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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149 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
39 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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3k 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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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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167 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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520 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
247 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
102 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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337 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
2k 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
68 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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2answers
292 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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101 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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15k 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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256 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 ...
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345 views

Keep Metro bootloader when Windows 7 is set as default

Recently I installed Windows 10 Technical Preview as a second OS, and I dual-boot it with Windows 7. I have UEFI setup, with Secure Boot disabled. Every time I set Windows 7 as the default OS I lose ...
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47 views

Ntldr is missing message on boot and my pc wont start

my desktop shows "ntldr is missing press ctrl+alt+del" , already tried, xp set up/win 7 set up both cd/dvd , tried boot override from bios tried booting with floppy what i need to do Is dump" boot ...
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133 views

Windows XP covered up by Windows 7 Bootloader

I have two hard drives in my system, one for Windows 7 and one for Windows XP. I had to reinstall Windows 7, and after the re-install, the Windows 7 boot loader started showing up. This did not show ...