The process of starting up a computer and loading the operating system.

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Show options of EFI entries

As described in the Arch Wiki, one can create an UEFI boot entry using efibootmgr like this: efibootmgr -d /dev/sdX -p Y -c -L "Arch Linux" -l /vmlinuz-linux -u "root=/dev/sda2 rw ...
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Mac bootcamp boots under VMWare fusion but not normally

I have a mac bootcamp partition running windows 8.1 that used to work perfectly. I've been using it for about 9 months exclusively under vmware fusion and all has been fine. I have recently however ...
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A portable linux system with luks encryption can't boot on one of my machines

I installed opensuse on a portable SSD drive, which I can boot on several of my machines. The installation uses luks encryption on /home and /swap partitions (ext4 filesystem). But only when I use ...
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2answers
21 views

Can't Boot from Fedora USB

I'm trying to boot from a USB with Fedora ISO on it, but it goes straight to windows 10. I've set the boot order to try the USB first and I'm pretty sure that the files are correct on the USB Files. I ...
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1answer
11 views

Uninstalling my ubuntu 16.04 dual boot

I've seen tons of guides for this, but none seem safe. I want to replace my ubuntu 16.04 with 14.04. From what I understand, the only way to do this is to uninstall ubuntu and then reinstall it. ...
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33 views

Need help quick! How to uninstall windows update's update?

I have a HP pavilion dv3 and I have upgraded to and downgraded from windows 10 a couple of times now because of this problem. The problem is that windows update makes an automatic update and screws ...
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3 views

Problems Booting, Restarting, Shutting Down on Chimera 4.1

My Mini-ITX computer has been working well for about 23 months. Recently, it is randomly refusing to start up, i.e. it hangs during the process, always after the Apple progress bar halts and video is ...
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1answer
18 views

How can I have bootable windows installation disk on a hard disk partition?

How can I install windows installation ISO to a partition on an external hard disk? The hard disk already has a Ubuntu installation and grub on it, and another NTFS partition I use to store personal ...
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1answer
9 views

Booting a Linux Live tool from FreeBSD UFS2 partition

I would like to boot a Live Linux CD, without needing the CD. Take for example GParted or CloneZilla. Which I periodically boot off their Live CD. But I would like to eliminate the use of the CD/DVD ...
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16 views

Not able to boot windows 8.1 and install/ live-boot ubuntu 16.04

I am using Windows 8.1 and have 4 partition c, d, e, f with 40gb, 7gb, 20gb, 45bg of free space. For making it dual boot I shrank the 40gb of free space from f-drive out of 45gb and deleted the free ...
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1answer
18 views

Booting from USB in win 10- What are the factors involved?

I got an Asus laptop recently, and it cannot boot properly from USB at all. Ubuntu, Clonezilla and Minitool Partition Wizard all crashed while booting. Curiously, they all crashed DURING boot, as in ...
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33 views

Is it possible to Trace a Cold Boot on Windows 7

Is it possible to trace a cold boot on Windows 7? By cold boot I mean the boot you get after a complete shutdown, count to ten, and then press the power switch. I have been able to trace (enable ...
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5 views

Qubes fails to install with boot error

I'm trying to install Qubes 3.1 on a Lenovo G50-30 from a usb drive. After selecting the option to boot, the system shows a loading bar and the Qubes logo, a few seconds later i get this message: ...
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12 views

Can I boot an Acer Power S260 from a USB flash drive?

I have an Acer Power S260 which I am trying to boot from a USB flash drive to install a Linux variant. There are options in the BIOS for booting from USB-FDD, USB-ZIP, and USB-CDROM, but not from ...
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44 views

Run several OS on same hardware in way that it is easy to switch between them

I have to design a setup with several software installations on the same hardware in way such that it is easy to switch between the installations. I dont want to install images each time but be able ...
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1answer
26 views

I mess up installing my Ubuntu and now i can't boot my windows

I almost know nothing about Ubuntu,my friends installed it for me (he is far away and can't be contacted so i can't ask for his help) So it begin when i try to uninstall Ubuntu i delete the ...
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15 views

Install Windows 7 on GPT partition

Today I got really frustrated when tried to upgrade a friend's Lenovo laptop from Win8 to Win10. The upgrade just fails no matter what I try... And I tried a lot of things... Long story short, I ...
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1answer
20 views

RHEL7 /boot deleted from fstab

Running RHEL7 Virtual Machine in my home lab. /boot is separated from "/". root@localhost ~# grep part anaconda-ks.cfg -A4 clearpart --none --initlabel # Disk partitioning information part pv.251 ...
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27 views

Windows 7 Boot Error 0x0000007B

I fear I've messed up and hope this can be resolved. Here is the video of what happens what I boot my computer. The boot sequence gets to the Windows logo and then crashes with the error shown above ...
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1answer
24 views
+50

How do I remove GRUB from Macbook after Debian install?

I made a partition on my secondary hard drive and installed Debian to it. As outlined in the docs, this makes GRUB the default boot loader. Since I don't really use the Debian install, I'd like to get ...
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GRUB boot loader(Ubuntu) not working

I have a system with ubuntu-14.04.2-desktop-amd64 installed. It has stopped booting up after updating. As I power on it, screen glows for 1 sec and it shuts down. While booting as I power on nothing ...
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18 views

BIOS with 'no issue UEFICompliant' support for GPT partition tables

I would like to change my hard drive partition table from MBR to GPT, (since MBR supports 4 primary partitions). After some searching, I discovered C:\Windows\Panther\setupacl.log, and found a few ...
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20 views

multiple motherboards dead on first boot?

So this all started when a few days ago I got my oculus rift and as I was plugging the USBs into the back of my computer my computer just shuts off, couldn't turn it on anymore, pressing power button ...
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24 views

Windows Boot Manager shows an operating system that is not installed

I added a hdd to my laptop that already had Windows 7 on it. I booted into it a couple times. Then I formatted the hdd because I already have Windows 7 on my primary drive and just needed the new ...
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24 views

Ubuntu on dual boot messed up my partitions

I have windows 10 on C: drive and I installed ubuntu 14.04 on D: on the 30.51 GB partition and Ubuntu 16.04 on 7.92GB partition. But both my ubuntu are always crashing and I want to delete and ...
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11 views

Start NPM and Node.js on machine startup using Windows Task Scheduler

I want to host my Node.js application in LAN (for testers). What I'm trying to is setting up the Windows task in Task Scheduler. My task needs to run npm start and node server.js commands to work as ...
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14 views

BIOS only boots entry manually

My PC came with an HDD preinstalled with Windows 7 in MBR mode. Now I upgraded it with an SSD and installed Windows 10 as GPT because the PC supports UEFI. If I restart the PC it boots Windows 7 which ...
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19 views

Why WmiPrvSE.exe is changing my preferred DNS each startup?

Today I discover that WmiPrvSE.exe is changing my DNS settings on my main NIC at each startup. The following is an extract from Security event viewer following my registry Audit : - <Event ...
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17 views

What do I need to boot Windows 10 from a usb drive on grub2?

I am trying to install Windows 10 on my Dell XPS 13. I installed the ubuntu 16 I have running now from a bootable usb, but I have not succeeded with windows 10. I got the .iso from microsoft: ...
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18 views

Windows boot error when dual booting Win 10 and Ubuntu Gnome

The other day I cleared some space on my ssd and installed Ubuntu Gnome alongside Windows 10 using the "Install along windows" option. Then to get Ubuntu to boot first I went into my bios and changed ...
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22 views

Stuck in BIOS after restarting laptop?

Good day! I restarted my laptop today after it hung up on me. When it booted, it greeted me with the BIOS screen. Of course I tried to reboot again and the same thing happened. I looked at the boot ...
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53 views

avg auto-scan causing intensive disk I/O after sign in?

Every time I sign into my computer, the hard disk indicator is always full on and from Task Manager I can see some processes having constant disk I/O for really long periods of time. I am not too ...
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41 views

Evbda.sys missing after PSU exploded

First time SE poster here so please let me know if I do something wrong! On Friday last week my Power Supply Unit exploded, I am not sure how, after googling it, it turns out these things have a good ...
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42 views

Repairing my computer's hard drive (Windows 10)

About a week and a half ago, I opened my new, Windows 10 computer (a Asus Notebook X540S) to find that the computer refused to boot. My system displayed "Starting Automatic Repair," then gave me a ...
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26 views

Firmware Dilemma [duplicate]

I have a black background with this first sentence: "The system found unauthorized changes on the firmware operating system or EUFI drivers. Press [N] to run the next boot device, or enter directly ...
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1answer
19 views

How to run a program at login with admin rights (elevated) without having to confirm the UAC prompt [duplicate]

I want to run a program (WhatPulse) when I login to my Win 8 account. The developers recommend to run it with admin privileges because that will "improve input accuracy". The problem running it as ...
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1answer
30 views

Computer only starts when I insert, then withdraw, my USB drive

So, for some time my desktop has been having infrequent fits, after which it refuses to start. It hangs right before it tells me about its memory stuff (I don't really know any of the technical ...
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28 views

Windows 8.1 - No Recovery Tools

Trying to refresh my WTG stick which has become corrupted. I have so far disabled Bitlocker and created a Windows 8.1 media iso. I run the WTG either as a VM over Hyper-V or in my laptop ...
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10 views

ASUS Q501L Laptop Won't Boot

Initially when I received this laptop (manual here), plugging it in would cause the power light (the white led below the white line image of a light bulb), the battery LED would turn orange (the led ...
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1answer
23 views

Asus netbook (Windows 10) *will not* boot from USB drive

I am trying to install Linux on my Asus X205T netbook from a USB drive. Recently I used the same drive to install Ubuntu on a relative's laptop. I formatted the USB drive on my Macbook Pro using ...
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11 views

ThinkPad T520: screen is constantly white after closing the lid without turning the laptop off

Today my ThinkPad T520 stopped showing anything, it always shows the white screen. How it happened: in my Linux Mint, I verified that when I close the laptop lid, it enters Suspend mode, and when I ...
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Weird behavior when booting up my computer

When I press the power button, I have power going to the motherboard since the LEDs light up, mouse and keyboards light up, etc... However, my monitors do not wake up nor do they recognize the input ...
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7 views

YUMI and System Repair disc issue

Please .. I need some explanation: First I created System Repair disc on Windows 7, it had 2 folders and 1 file: boot, sources and bootmgr , then I created a USB drive from those 3. Everything was OK ...
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1answer
19 views

Problems suspending notebook

I have problems suspending and shutting down Lenovo G560. Suspend problem: after suspending neither power indicator, nor power button begin to blink. Capslock and Numlock leds don't turn off after I ...
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2answers
50 views

openSUSE hanging on boot

I just installed openSUSE Tumbleweed with a clean install in VirtualBox. On boot it hangs after the line [ OK ] Started Accounts Service....2.ons service....ns kernel modules.f8fe71. (Actually I ...
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115 views

What happens during a hard reset?

What exactly happens when you hold down the power button and perform a hard reset? Does it involve only hardware, in the sense that it shuts down power and everything crashes in its current state? ...
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32 views

Unable to boot from clean windows 8.1 and 10 installation

I'm having an issue I spent the whole last day on troubleshooting and I've read a lot of threads both here and other QA/forums. I recently bought a new SSD disk from OCZ, a Trion 100, because my ...
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Login screen not appearing post boot

Once we boot the OS, I can see the Windows Logo. After that it should load the Logon screen to click on login. But unfortunately, a blank screen appears with a Cursor. I can move around the cursor, ...
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INACCESIBLE_BOOT_DEVICE after swapping out hard drive

I had a regular HDD in my laptop. I decided to switch it to a SSD recently. I put my old hard drive into a USB3 casing so I could boot to it still for programs I still need on the Windows side, and to ...
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Is it possible to make a usb that is bootable on both uefi and bios? [duplicate]

I have a grub4dos multiboot usb drive that contains some tools for computer checking. However, it only works on legacy boot. If you want to boot up from the drive, you need to change the bios to ...