Dell Optiplex 7010 :: No Boot From CD-DVD Even With UEFI OFF And Secure Boot Off

Oct 31, 2014

Everyone:  Absolutely cannot boot from CD-DVD even if I turn OFF Secure Boot and UEFI and my machine lists my CD-DVD as a boot option.  When I then try to boot from the CD-DVD, I get an error message.  (Optiplex 7010 Mini-Tower with Win 8 Pro 64-bit, an Intel i5 3470 processor, 8 GB RAM and 500 GB hard drive.  It has BIOS version A16 right now.)

I started a thread on this issue in Desktop Hardware Forum - [URL]...

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Dell Inspiron 17r SE :: Where Is Boot From USB Option In UEFI Boot Device List

Feb 11, 2013

Where is Boot from USB option in UEFI boot device list in Inspiron 17r SE?

Mine only shows Network in UEFI boot list?

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Dell Vostro 3500 :: How To Disable Secure Boot

Jan 23, 2013

I have a Vostro 3500 with Win 7 Premium and i try boot from external hd ( i install linux in this external hd- Seagate 320 Gb) and it can't run, i think the problem is secure boot.

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Dell Latitude E7440 :: BitLocker And Secure Boot Running Windows 8.1

Jun 26, 2014

I'm attempting to enable BitLocker on a Latitude E7440 running Windows 8.1. The system is in UEFI mode with Secure Boot enabled, so I'd like to use Secure Boot for integrity validation. I have the appropriate GPO set, but if I try to enable the TPM protector, I get the following warning event in the BitLocker-API management event log:

BitLocker cannot use Secure Boot for integrity because the expected TCG Log entry for variable 'SecureBoot' is missing or invalid.

This is immediately followed by:

BitLocker determined that the TCG log is invalid for use of Secure Boot. The filtered TCG log for PCR[7] is included in this event.

The system therefore ends up configured with a regular platform validation profile instead of using Secure Boot. Is this a problem with the firmware on the Atmel TPM on the system, or is it something else?

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HP Pavilion G7-2210ex :: Bios Options - Secure Boot Is Grayed

Jul 4, 2013

There is no options in the bios  such as  the  secure boot is grayed and  how to know if the components in my notebook is connected correctly  ???

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HP G70-460US OS/Software :: No Bios Update To Enable Secure Boot

Jan 19, 2015

A friend ask me to upgrade her G70-460US Notebook PC to Win 8.1 from Vista.  The bios doesn't have a secure boot option and when checking HP the update for this machine doesn't show it either.  It this notebook to old to update to Win 8.1?  If not where do I find the Bios upgrade with the Secure Boot option?

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Lenovo X Series ThinkPad :: X1 Carbon - How To Re-enable Secure Boot

Aug 19, 2014

On my X1 Carbon, I had to move from Win 8.1 pro to 8.1 Ent. I did a fresh install from scratch to only install what I need.During my setup, I had to disable Secure boot, to boot on a USB Key, install 8.1 Enterprise. Now that everything is working, I would like to re-enable the secure boot option.
If I don't it directly in the BIOS, the laptop doesn't book any more.Do I have to import key from my 8.1 Ent to the Bios or something like this?

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Lenovo T400 / T500 :: Enabling Secure Boot On T430s?

Jun 17, 2010

My laptop was running Windows 8.1 with SecureBoot enabled just fine. But I just swapped out my boot drive for a bigger SSD and, when I tried to boot from my USB installation media (to do a fresh Windows 8.1 install), nothing would happen (the screen would just flash when I tried to select the USB drive). I realized I had to disable Secure Boot in order to boot from the USB drive and then to enable booting from legacy/non-UEFI devices.
So now I've been able to install Windows 8.1 and it's running without a hitch, but Secure Boot is still in the disabled state. When I enable it, I can't boot from anything. How can I re-enable Secure Boot with my fresh Windows 8.1 install? Or if I have to reinstall, what steps do I need to take this time?

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Lenovo ThinkPad Yoga S Series :: Disabling Secure Boot On S1

Nov 16, 2014

I am trying to disable UEFI Secure Boot on my Thinkpad Yoga S1 but it keeps getting re-enabled after a reboot. If I set secure boot to disabled I can boot into the non secure OSes installed on the machine imediately afterwards but if the machine is restarted the Secure Boot seting in the BIOS is re-enabled.  It's important for me to have secure boot disabled as I use OSes without secure boot.

I try to disable Secure Boot in the BIOS on the following screen :

Link to image 1

But if I re-enter the BIOS either after booting into an OS or simply re-entering the BIOS, Secure Boot is back on:

Link to image 2

I have also tried to disable "OS Optimzed Defaults" but it also returns to enabled after a restart.

Link to image 3

Some of the other BIOS settings save correctly so I can't figure out why the secure boot settings don't. The BIOS version I have is the latest (1.18).

It's inconvenient to manually disable secure boot each time I want to use the laptop. The two operating systems (Ubuntu and Android x86) do work reasonably well once booted.

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Lenovo B / G Series :: G500 Secure Boot Status Disabled Can't Change

Feb 16, 2014

I have Lenovo G500 with Windows 8.1 Profecional. I use UEFI boot mode, but there is a problem with secure boot.
In BIOS Page Security I have
  SECURE BOOT                 ENABLED       
  SECURE BOOT STATUS    DISABLED    I cannot change it although I try everything...
Windows 8.1 tell me in System informacion(msinfo32) I have secure boot off. I dont have any watermark in my Desktop.
I only want to use SECURE BOOT.

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Lenovo U/S Series :: Windows 8.1 On IdeaPad U330 - Secure Boot Not Being Configured

Oct 19, 2013

Yesterday, I updated to win 8.1.  The process appeared to go smoothly, but I now have a number of issues:
1  If I close the lid and reopen, the sytem does not wake up.   It does not wake up if I press the power button.  All I can do is a hard shutdown and reboot.  This occasionally gives an error message on restart, but has not produced any solutions.
2 There is a message about secure boot not being configured
3 The support app has a cross on it and won't work
No doubt there are other problems, but number 1 is the killer....

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Dell :: Will N5110 Support UEFI Boot Mode

Mar 1, 2013

Will N5110 support UEFI boot mode and when?

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Acer Aspire E15 :: Can't Boot From USB (UEFI)

Feb 18, 2015

I'm having getting my USB stick recognized as a bootable device (installing windows 7 onto a system that came with windows 8.1 pre-installed, no optical drive)
System: Acer E 15 (E5-571), BIOS V1.15 (UEFI)
What I've tried:-Disabled Secure Boot
-Created bootable USB stick with Windows 7 iso, via 'Microsoft USB/DVD Download Tool' (on alternate Windows 7 system)
-Created bootable USB stick with Windows 7 iso, via 'Rufus' (on alternate Windows 7 system)
-Windows 8.1 Advanced Restart -> Boot from UEFI USB Device (No UEFI device recognized) 
What worked:-Enabling 'Legacy Boot Mode': USB stick was recognized upon boot and loaded Windows Installation.  HOWEVER, Windows 7 won't instal to a GPT formatted drive under Legacy Boot Mode.  I've read booting in UEFI mode is the only way to get Windows 7 to install onto GPT.
What I don't want to do:-Format the drive, change drive mode to MBR to instal Windows 7.  Why?  Because then I'd loose the factory installation of Windows 8.1

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Dell Latitude 6510 :: UEFI Can't Add Boot Options In Bios

Dec 16, 2010

I have a new dell latitude 6510 notebook and now i will install Windows 7 Pro 32 Bit again. When selected "Boot List Option" under bios settings i see legacy and uefi but i can´t "Add Boot Options" - Warning "File System not Found". Windows 7 Pro 32 Bit is installed and working under legacy but not working on uefi. When uefi selcted windows 7 pro 32 Bit is installed and when installation is finish can´t find bootable device.

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Dell Inspiron SE 7720 :: UEFI Boot From USB Drive Is Not Working

Feb 15, 2013

I have just purchased a Dell Inspiron 17R Special Edition 7720. It came with a preinstalled Windows 8 (so 64-bit and mandatory UEFI boot). I want to use Linux (more specifically, Archlinux) for work and Windows for games, so dual boot is needed.

I almost completed the Linux installation except for the bootloader: I need to boot Linux from UEFI and didn't manage to do it so far. Here is what I did after I received the PC:

-Disabled Secure Boot; updated BIOS to version A12
-Resized the main Windows partition and created a few partitions for Linux;
-Switched to legacy boot mode and managed to boot a MBR-bootable Arch linux installation USB drive;
-Installed most of the system switched back to UEFI boot mode, Secure Boot off.

At this time I needed to boot the kernel from UEFI for the bootloader installation program to have mandatory access to the EFI environment variables. So I created an UEFI-bootable Archlinux installation USB drive (with a FAT partition) but so far I couldn't manage to successfully boot this drive from UEFI instead of Windows 8.

I think I really tried every single combination, such as:

different USB ports; different boot entries created with F2 boot setup, with different parameters; different orders for the boot entries; hit my boot entries directly within F12 boot menu.

No matter what, in UEFI mode the system always boots the Windows partition.

Also, I could not find any relevant manual or software documentation about the A12 BIOS on the Dell site, did I miss something?

The solution that the user described in this thread to UEFI-boot to a DVD did not work for me with a USB drive.

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Dell Inspiron 15R-5520 :: Cannot Boot Windows 7 Install DVD In UEFI Mode

Oct 22, 2012

I received my Dell Inspiron 15R - 5520 laptop and am attempting to set it up to perform a UEFI boot to a Windows 7 (64 bit) installation.  I am using bios version A11 which is the latest available.

If I use legacy, I am able to boot fine to the Installation DVD and install/use the system.   If I use UEFI (non-secure boot),  it will freeze during the boot process for a long period of time.  I do not ever get to the GUI to attempt installation. I have tried clearing the disk partitions using diskpart -> clean to ensure it is not due to having GPT vs MBR and have also tried changing the SATA adapter to ATA vs AHCI.

Alternately,  I am able to boot to,  and install Windows 8 RTM in UEFI mode.  

Before I get a lot of responses of "Don't use UEFI",  the reason I purchased this laptop was for the purpose of dual booting between windows 8 and windows 7 for development purposes,  and require the use of secureboot to properly test the software I am developing.   If this laptop is not able to run Windows 7 in UEFI mode,  I will need to return it and select an alternate vendor.

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Dell XPS 15 L521x :: Boot From Disk Drive UEFI - Windows 7 / Ubuntu

Apr 9, 2013

I just received my XPS 15 and plan on dual-booting Win 7 and Ubuntu. I'm trying to install both, but I have no disk drive boot option in UEFI mode, only in legacy mode.

How can I boot from a disk using UEFI mode?

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Dell Inspiron N5110 :: Replaced Optical Drive With SSD / UEFI Can't Boot

Feb 16, 2013

I've finally managed to find someone to replace my optical drive with an SSD (wouldn't want to void the warranty, do we?) and I've got quite bit of a problem here. After installing Windows 8 on the SSD, I get the error "winload.exe missing or corrupted" and error code 0xc000000e. The installer automatically put the boot data on the original HDD, while the OS is on the SSD - and it seems the UEFI can't find the OS like this.

The OS itself seems to be intact, since pressing F12 at booting and selecting Hard Drive starts the computer normally.

I've tried to move the boot sector to the SSD, but it seems I'm missing something... Would a BIOS update maybe work with this?

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Lenovo U/S Series :: U430 Touch - New SSD UEFI Boot

Aug 11, 2013

My Lenovo U430 touch came with a Samsung 128GB SSD. Since it was becoming a little on the small side, I decided to replace it with a Samsung EVO 250GB SSD.
My first thought was to clone the old SSD and then resize the partitions afterwards. I quickly ran into trouble, the cloning didn't work out. So I decided to begin from scratch. So I installed the new SSD and installed a bare Windows 8.1 Pro install.
Although everythings works one thing is still bugging me. For the new Samsung SSD to be bootable I must:

- Disable Secure Boot
- Enable Legacy booting

I thought all the necessary codes were a BIOS / OS thing?

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HP Pavilion 15-n205tx OS/Software :: How To Dual Boot Windows 7 And 8.1 Using UEFI

Apr 30, 2014

My notebook model is   HP PAVILION 15-n205tx
Click here for product details
My notebook pc is installed with Windows 8.1 and i would like to dual boot it with Windows 7 using a cd but when i try it ,there is an error saying windows cannot be installed in the selected partitions as it is of GPT format.
How to dual boot my pc.

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Lenovo B / G Series :: G570 - How To Make The UEFI Boot By Default

Jun 10, 2014

Lenovo G570 have a UEFI? If yes then how I can to make the UEFI boot by default?

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Dell XPS L702X :: UEFI Mode Enabled But Can't Access Firmware Setup And Boot Menu

Oct 28, 2012

Yesterday I flashed the firmware of my XPS L702X to version A19, which enabled UEFI boot mode. I decided to go ahead and try to install Windows 7 in UEFI mode on a GPT disk. Installation succeeded, booting failed however. Then I read a message on the web from someone who succesfully installed Windows 8 on the same machine in UEFI boot mode on a GPT disk. So I decided to try Windows 8 instead. Installation failed. Using the recovery menu from the Windows 8 installation media, I wanted to try and see how far installation had come and more or less accidentally selected in some "Advanced options" menu to reboot to my USB flash drive (where the Windows 8 files were on). Rebooted fine. Then I shutdown, using the regular option.

When I turned on my machine again, I found out that pressing either F2 or F12, for the firmware setup and the boot menu, respectively, didn't work anymore. The firmware recognised my input, as the text in the lower right of the Dell splash screen became lighter, but instead of entering setup or the boot menu went straight ahead to boot my existing and working Windows 7 installation on my first (MBR) hard drive instead.

So, in short, I am locked out of setup and the boot menu. I have already tried reflashing the firmware, but without any luck. What to do now?

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Dell Latitude E6530 :: Blank Screen At Power On After Switching BIOS To UEFI Boot

Aug 7, 2013

I'm trying to install Ubuntu on an e6530. I changed a BIOS boot setting from Legacy to UEFI. Now the laptop doesn't even show me a BIOS screen at startup. The screen is backlit, so power is on, but shows nothing. The drive light flickers a few times, but no matter how long I wait, nothing appears.

I can't even switch it back to Legacy because I can't get into the BIOS. Hitting F12 after power on does nothing. Is there some way to get it back to Legacy mode? Or simply reset the BIOS to default settings?

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Dell 7000 Series :: When To Boot From Legacy Boot But Boot List Is Empty

Jan 29, 2015

I'm trying to boot from legacy boot from my new dell 7000 series. however when i change from uefi to legacy i have no boot option. the whole boot list is empty.

i have called dell and the support desk told me dell has no support for legacy :S that means no windows 7 on my dell or any other os that uses non uefi...... i think the bios is corrupt is the whole list is simply missing.

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Lenovo T400 / T500 :: ThinkPad T540p / Unable To Select UEFI / Legacy Boot In BIOS / Startup

Aug 7, 2014

I bought a ThinkPad 540p that comes with preloaded Windows 8.1. As I want to dual boot the machine I tried to select the Legacy Boot option in the BIOS/Startup tab, but I can't do anything as the option UEFI/Legacy Book is greyed out and locked in "UEFI Only". Below it there is an option called: -CSM Support that is also greyed out and selected as [No]. (below  these options there is a little note with an asterisk saying "Unselectable for Secure Boot").
How can I enable the UEFI/Legacy Boot option again in order to dual boot the computer? I want to be able to boot from USB or from the CD Drive.

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Dell Inspiron N4030 :: No Boot Filename Received - Loaded BIOS Defaults As Instructed And Saw 2nd Boot Priority HD

Feb 27, 2013

I ran the diagnostics test as instructed prev and all passed. I then loaded BIOS defaults as instructed and saw "2nd boot priority hard drive"  What does this mean and can I fix?

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Acer :: (6935G) Boot Problem After Restart (cant Access Bios / Boot From Disk Etc)

Jan 9, 2010

I got this laptop a few days ago, I currently have 7 and XP installed on it and kind of have vista...(read further down).

My 7 seemed to break today after playing around with a program called powerstrip trying to get my external monitor to show the right resolution (I've realised now the cable vga was broke, but meh) but this is not the full problem, after windows 7 failed to boot I tried to boot xp after turning it off during the windows 7 splash screen and now im stuck with a dash when I turn the laptop on (I dont know if its actully related to something I've done or not).

If I turn the laptop on a flashing dash comes on in the top right, it then stops flashing and turns into a none flashing dash further up the screen and just locks here and I cant do anything at all other than trying to restart it. When I had this problem previously (at least I think this problem) on my desktop it usualy turned out to be something usb related but I have everything unplugged (all though the bluetooth adapter light is on when it is doing this) so I realy dont know what to do...............

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Lenovo P500 P/Y/Z Series :: Default Boot Device Missing Or Boot Failed

May 25, 2014

My Ideapoad P500 is approximately 16 months old (so the warranty period is out, obviously!) A couple of nights after a reboot I got the message "Repairing Hard Disk errors. This could take an hour or longer."... or something very similar. The laptop hung up at that message for more than 18 hours.
I did a hard reboot and now get the message "Checking media" followed by the error "Boot failed." This leads to the message, "Default Boot Device Missing or Boot Failed."No I don't have any recovery media.Yes I have pretty recent backups so that is not a problem.I've got an enclosure that I can use to hook my laptop hard drive up to so I can see if the drive is even readable.
Now here is the 64 thousand dollar question... how do I get the hard drive out of the laptop? I have taken the five screws out of the back. At that point, I think the DVD drive should slide out, but it does to get the hard drive out?

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Lenovo P/Y/Z Series :: Y500 / Default Boot Device Missing Or Boot Failed

Jul 31, 2013

I have a y500 Lenovo gaming laptop with Windows 8, and for the past couple of days, each time my laptop is put in hibernation or powered down, whenever I turn it back on it gives me this message:

"Default Boot Device Missing or boot failed Insert recovery media and hit any key Then select boot manager to choose a new boot device to boot or recovery media."

Then it brings me to a page with 3 boot options, and only the Windows Boot Manager works. I'm doing scans and hardware scans but so far nothing is being found. This laptop is less than 2 months old so I really don't think it's a hardware problem, and I haven't downloaded anything recently that may have messed this up. I would contact Lenovo but I'm unsure if this is an issue with the laptop, or Windows 8.

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Acer Aspire E1 522-3657 :: Default Boot Device Missing Or Boot Failed

Oct 11, 2014

I have a Acer E1 522-3657 computer, which my son set-up for me but did not make the recovery disc(s). The unit is just outside of the warranty period when the hard drive failed. The hard drive just makes a clicking noise and after the logo screen appears it goes to a blue screen with a box that has the following message with in, "Default Boot Device Missing or Boot Failed. Insert recovery Media and Hit any key.....Then Select 'Boot Manager' to choose a new Boot Device or to Boot Recovery Media.
I have installed a brand-new Western Digital 1T Sata3 harddrive to replace the Toshia 750 GB original Drive. After turning the computer on and at the logo screen I press and hold F2, this takes me to the InsydeH20 Setup Utility Screen. I see under the "Information" menu that the installed harddrive model and serial number appear. I see in the "Boot" menu, Boot Mode: "UEFI" and Secure Boot: "Enabled".
Under the "Exit" menu, Exit Saving Changes is highlighted. When I press F10 a "setup Configuration" box appears asking to save configuration changes and exit now? "Yes" is highlighted to which I hit Enter and are returned to the "Default Boot I then hit ecs twice and are at a black screen with the message No bootable device -- Please Restart system_appearing in the upper left corner of the screen. I then push and hold the power button until the computer shuts off.
I have ordered from acer the "Acer E-recovery Media Disc Set", which is specific to the SNID of my computer. I have not attempted to format the new hard drive in any way.  I assume the E-recovery Media Disc Set will handle that operation due to the multiple partitions required.
In view of the above situation, do I need to set up the computer in any way before I start to utilize the E-recovery Media Disc set. I assume the Media will be on CD's. The computer was running Win 8.0 which was updated to Win 8.1 and was running very well, very stable.

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