An operating system from the Windows NT family of operating systems from Microsoft, released in 2012 and the successor of Windows 7. Introduced UEFI as a replacement for legacy firmware/BIOS and required computer manufacturers to enable the "secure boot" feature.

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boot-repair crashed windows while i was trying

I tried to install windows 8.1 from dvd on ubuntu 15.04 installed first. It crashed grub2 so run boot-repair from usb. Grub was repaired and after restart there was its menu with three options: ...
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8 views

Ubuntu 14.04 Oracle virtual box windows 8 fail to locate files

I have downloaded windows 8 ISO file from their offical website: Widnows 8 download Then i have set the following settings on my new virtual drive: As you can see ive added it to the disk: ...
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35 views

Ubuntu 14.04, Windows 10 dual boot problem GRUB

I have just upgraded my laptop to Windows 10 from Windows 8.1. However, every single time I select windows 10 from the grub menu, the windows 8 loading screen comes on first then it changes and boots ...
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0answers
15 views

Cannot boot ubuntu 15.04 using sony VAIO with win 8.1 pre installed

I am new to Linux and I am recent trying to install 64-bit ubuntu 15.04 into my sony VAIO S series laptop (SVS13125CGP)with windows 8.1 pre-installed to make it a dual-boot laptop. I have tried the ...
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1answer
25 views

How to revert a dual boot (windows 8 & Ubuntu 15.04) [duplicate]

I want to reinstall ubuntu but with LTS so I can delete windows 8 and allocate my hard drive data to ubuntu
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0answers
20 views

how can I Revert ubuntu dual boot with windows 8 and retrive lost documents

I wanted to dual boot Windows 8 with Ubuntu and I mistakenly chose the wrong partition. I have lost my files and everything on my computer including the Windows installation. Is it possible to revert ...
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3answers
35 views

How to install Windows(8.1/10) when Ubuntu 14.04 is installed?

I want to install windows operating system on my laptop (originally came with windows, but deleted it because Ubuntu is better for me, but now I have to use Windows, because of my studies). Few days ...
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0answers
29 views

Dual booting 14.04.3 and windows 8.1 issues

So I have a brand new Asus n550jk. I followed this guide; https://www.youtube.com/watch?v=hOz66FC0pWU. I have converted a computer to ubuntu 14.04.3 completly before correctly, however I have never ...
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1answer
48 views

Ubuntu 14.0.4 LTS Crashes and freezes many times just after installation

Hello everyone and thanks for opening this thread; My computer works fine when I boot windows 8.1, but booting Ubuntu, I will surely face a system crash ( or freez), some times it takes one or two ...
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0answers
44 views

Having trouble dual-booting Linux (Ubuntu 14.04) with Windows 8.1

I would like to dual boot Ubuntu 14.04 for a software development environment, but I would also like to keep Windows 8.1 and my programs / media on a partition because I enjoy playing some ...
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30 views

Accessing Windows Shared file from ubuntu

I was wondering how to access windows shared file from ubuntu...I'm new in Ubuntu so excuse me if it's a silly question
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1answer
22 views

Dual-booting Windows 8 and Ubuntu with UEFI on two separate drives?

I've already installed Windows 8 in UEFI mode and it is currently running off of one SSD. On another SSD, I want to install Ubuntu GNOME. Is there any sort of special configuration or setting I have ...
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1answer
32 views

I deleted my ubuntu partition (win8 dual boot) without first resetting my uefi boot settings. How can I recover my laptop from grub2.02?

When I turn on my computer, I see the grub2.02 command line. It says "GNU GRUB version 2.02~beta2-15 Minimal BASH-like editing is supported. For the first word, TAB lists possible command ...
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1answer
27 views

windows does not boot after successfully dual boot with ubuntu 14.04

So, I've successfully dual-booted my Windows 8 machine with Ubuntu 14.o4. However, I still don't have a convenient method of choosing what OS to load at boot time. Ubuntu directly boot.
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4answers
162 views

Windows 10 upgrade attempt destroyed both my Ubuntu and itself (windows 8.1). How do I wipe/format my hard drive to start fresh and try again?

I had been dual-booting with Ubuntu and windows 8.1 for a while now without issue. However, when attempting my free upgrade to windows 10, it killed both. I am not entirely sure why, but it looks like ...
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0answers
46 views

VirtualBox - Trying to boot a VM from .iso - Fatal: no bootable medium found!

I am trying to install Windows 8.1 64bit in a VM. I have an .iso and I am trying to boot from the .iso. But I get the following error: Fatal: no bootable medium found! I have downloaded the .iso ...
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0answers
8 views

Deleting Windows from triple boot

I first had windows 7 in my laptop. Then I installed windows 8.1 in different partition (dual booted). Then I installed Ubuntu in different partition. Now it shows me grub showing option to boot ...
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0answers
67 views

How can I upgrade to Windows 10 and still dual boot?

I currently have Windows 8.1 and Ubuntu 14.04. I want to upgrade windows from 8 to 10. But I am afraid that it will break the Ubuntu dual-boot configuration. Please guide me how to upgrade to ...
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0answers
14 views

Boot Windows 8.1 after dual booting with ubuntu but only can acces Windows recovery

I just made a mess with UEFI and Legacy. I can't use Boot repair because I'm in Legacy mode, and I can't use Windows backup because it's impossible to enter, it just let me enter in recovery mode and ...
3
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2answers
100 views

Dual-boot Ubuntu 14.04 - Win8.1 (Can't boot Windows when UEFI mode is turned on)

I'm trying to install Ubuntu as a second OS, but I'm stuck at the turn off secure boot step. I've found out that to disable secure boot I need to switch from Legacy mode to UEFI mode. But I can't ...
0
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1answer
58 views

Changing Default Grub Menu, Not Default OS

My question is in regards to changing my default GRUB bootoader. Not the boot order, font, image, etc. I have successfully triple booted both of my laptops. Their default OS's were both Windows 8.1, ...
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1answer
41 views

The System Running In Low Graphics Mode’ Error. Guides will help

Hello Ask Ubuntu community. I've been trying to setup / load Ubuntu for a while now, but It won't let me set it up. I get the error "The system is running in low graphics mode" and I have a NVIDIA ...
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3answers
44 views

What will happen with ubuntu if I reset Windows 8 to factory default?

I have a dual boot system with Ubuntu 14.04 and Windows 8 on my hp laptop. I have been using this for over a year, but recently, there was some accident after which my Windows 8 is not booting. I ...
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0answers
20 views

Windows 8 over Linux Bootup EFI Error

I am getting these error while installing Windows 8 . I have a dell pc which comes preinstalled Windows 8 but after time i installed ubuntu . At the time of installtion by mistake all the files got ...
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0answers
25 views

install ubuntu alongside with windows 8.1: cannot boot into os selection screen without external

I was following instructions from this link(not exactly but roughly those steps). In the end I still cannot boot into the (grub) os selection screen. However, if I plug my installer thumb drive in, I ...
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2answers
76 views

Dual booting windows 8.1 and ubuntu, windows automatically loads

So I recently attempted dual booting Ubuntu with Windows 8.1 on a HP Pavilion G6. So far I've gotten everything working except whenever I turn on or restart my computer, it loads straight into ...
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0answers
11 views

dual boot win8.1 and ubuntu - Unused space problem

I justed to install Ubuntu on a pre-installed windows 8.1 Lenovo. So I shrunk about 40 GB from one of my drives. But when I wanted to use that space to install Ubuntu in that, I saw that this space is ...
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1answer
104 views

how to dual boot ubuntu 15.04 with windows 8 [duplicate]

My laptop model is DELL INSPIRON 15z(has 2 hard drives. One is 500GB HDD and the other is 32GB mSATA used for caching purpose and fast booting using IRST). I want to dual boot ubuntu alongside windows ...
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0answers
24 views

Installing ubuntu while retaining Windows 8 recovery option

I have a problem with retaining the option to recover Windows 8 on a laptop, Acer Aspire E1. On my own laptop I have Win7 and had a partition called Windows recovery partition and I just left it there ...
1
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2answers
63 views

Dual Boot Windows UEFI problems

So I once had a nice setup going with dual boot linux and windows 8.1 in UEFI bootloader mode, but then I had to screw it up and try playing around. I've currently got windows 8.1 installed, with no ...
1
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0answers
29 views

Which Are My Linux Partitions? [closed]

I am dual-booting Windows 8.1 and Ubuntu, both installed on separate partitions. I want to reformat my system with the windows 8.1 "Recycle Your PC" feature, but I'd like to first remove the linux ...
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0answers
46 views

Ubuntu 15.04 and Windows 8.1 dual-boot instructions [duplicate]

Hello fellow linux users, I am considering installing Ubuntu 15.04 on my Sony Vaio that came pre-installed with windows 8.1. I have looked at two guides for this. One made by Ubuntu, and the other ...
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1answer
22 views

Windows Manager always overrides Ubuntu

So I Installed Windows 8.1 first and then Ubuntu 15.04 on my laptop. Things were dandy until yesterday when I tried to boot ubuntu and it automatically went to windows. Tried to go through the bios ...
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0answers
23 views

before instaling Ubuntu [duplicate]

What should I do before installing Ubuntu to make sure that it won't have problem with my windows 8.1 How can I make sure that my files on windows won't be deleted?
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0answers
36 views

How can I boot Ubuntu trial from USB drive on Windows 8.1 PC with SSD?

I've recently installed Ubuntu 14.04.2 LTS onto a USB drive using the Universal USB Installer. Everything up until this point was fine. I then restarted the computer, and tried to access the boot ...
0
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1answer
49 views

Boot-Repair made Dual Boot System unusable

After an Update to Ubuntu 14.04, the system no longer started and showed the grub rescue prompt. I was able to start from CD by pressing F10 at the beginning to select the boot medium. Then I was able ...
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votes
2answers
75 views

GRUB is not letting me switch to Windows 8. Dual boot process. Ubuntu 15.04

So today I just tried to do a Dual Boot with my Windows 8 desktop computer. I followed these instructions At the start, I made a 200Gb partition from my 1TB hard drive. I booted Ubuntu 15.04 by ...
0
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1answer
73 views

Dual boot not working (unable to load Windows) on ubuntu

I am new to linux(ubuntu) and have installed it while following different blog posts and stuff to keep my Windows installed and I hope it is. I selected Something else option while installing but now ...
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0answers
113 views

New to Linux, tried booting from a usb. wubildr.mbr is either missing or corrupted. (Windows 8)

I'm currently running Windows 8. I used this installation guide to install everything. After using the "Help Me Boot from CD" option in Wubi, I was able to restart and get to a page saying that ...
0
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1answer
53 views

ubuntu no longer starting in secure mode

I had a working dual boot system, Kubuntu 15.04 and Windows 8.1 - after an update 3-4 weeks ago, Ubuntu wont boot when secure mode is enabled. I get an error message "Invalid Signature Detected. Check ...
0
votes
1answer
13 views

Ubuntu boot with Windows 8.1, can't get Windows back

I installed Ubuntu earlier today, and can not find a way to go back to Windows. I have put the USB drive with Ubuntu on it, no option from GRUB, and I can't find it in Ubuntu either. I don't have an ...
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2answers
2k views

windows 10 and ubuntu dual boot [closed]

will we face same problem in installing ubuntu alongside windows 10 as we faced while installing ubuntu alongside windows 8? Did microsoft fixed it?
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1answer
62 views

On which device do I install the bootloader when I want to dual boot?

I'm currently trying to install Kubuntu 15.04 alongside Windows 8.1 (already installed). It's on a non-UEFI machine. My partitions are as follows: sda1 windows installation (500GB SSD) sdb1 HDD ...
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votes
2answers
30 views

boot-repair windows not listed

today I installed Windows 8.1 and it broke my grub. I tried to run the boot-repair GUI on a live session of Ubuntu but after the restart of the PC the grub displays ONLY Ubuntu. Before the ...
0
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1answer
81 views

Unable to access BIOS menu after installing Windows 8

After installing Windows 8 in UEFI mode I can no longer access the BIOS menu. I have tried different solutions to access the BIOS menu but I was unsuccessful. I want to switch to Ubuntu but the live ...
0
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0answers
8 views

Installing a second OS next to Ubuntu

At the moment, my notebook us running on Ubuntu 14.04. I want to install a second operating system (windows 8.1) but I can't seem to install it via UEFI. Either the medium is to small(USB stick), ...
3
votes
6answers
306 views

How do I install Ubuntu with windows 8.1 on Toshiba? (now upgraded to win10)

I've upgraded my OS to Windows 10 but my problem still persists I am trying to get Ubuntu 14.04.2 and windows 8.1 dual boot setup. I've read numerous articles on how to do this, but can't figure out ...
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0answers
31 views

Problems uninstalling Ubuntu (Bios keeps showing it?)

I'm trying new distributions, and I want to clean all my Ubuntu installation. I have a dual boot W 8.1 - Ubuntu. This is what I've done so far: 1 - I changed my boot priority from BIOS. 2 - I ...
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0answers
28 views

Ubuntu 14.04 : “serious errors were found while checking the disk for / ” and after that Linux hangs very often

I have been using dual boot alongside Windows 8.1 from 1 year. Very recently the windows shut down unexpectedly, and then started showing "Trying to repair Windows". I knew it would harm Ubuntu file ...
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0answers
102 views

Unable to install Ubuntu 14.04.2 on Acer Aspire E5-511G with Windows 8

I've tried everything I can to install Ubuntu 14.04.2 alongside Windows 8 on my laptop and I'm just not successful. I have Ubuntu on an USB flash drive, and whatever I do, I keep getting the message ...