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How do I start computer without default boot device

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With a bootable disk, whether it's a cd or bootable USB thumb drive. If it's a windows machine, you could try pressing F8 repeatedly as soon as it starts (some computers use F12 instead, I believe) and try to use the boot menu. Select last known good configuration and see if it will boot. If not, use a bootable disk and try to use the recovery console to recover it from there. Hope this helps!

Posted on Nov 20, 2014

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Free usb reboot


You might want to boot from a USB device, like an external hard drive or a flash drive, for many different reasons.
When you boot from a USB device, what you're actually doing is running your computer with the operating system that's installed on the USB device. When you start your computer normally, you're running with the operating system installed on your hard drive - Windows, Linux, etc.

How To Boot From a USB Device
Change the BIOS boot order so the USB device option is listed first. The BIOS is rarely setup this way by default.
If the USB boot option is not first in the boot order, your PC will start "normally" (i.e. boot from your hard drive) without even looking at any boot information that might be on your USB device.
Tip: The BIOS on most computers list the USB boot option as USB or Removable Devices but some confusingly list it as a Hard Drive option, so be sure to dig around if you're having trouble finding the right one to choose.
Note: After setting your USB device as the first boot device, your computer will check it for boot information each time your PC starts. Leaving your computer configured this way shouldn't cause problems unless you plan on leaving the bootable USB device attached all the time.
Attach the USB device to your computer via any available USB port.
Note: Creating a bootable flash drive or configuring an external hard drive as bootable is a task in itself. Chances are you made it to my instructions here because you know whatever USB device you have should be bootable after properly configuring BIOS.

  • Restart your computer.
  • Watch for a Press any key to boot from external device... message.
  • On some bootable devices, you may be prompted with a message to press a key before the computer will boot to the flash drive or other USB device.
  • If you do nothing, your computer will check for boot information on the next boot device in the list in BIOS (see Step 1) which will probably be your hard drive.
Note: Most of the time when trying to boot to a USB device there is no key-press prompt. The USB boot process usually starts immediately.

  • Your computer should now boot from the flash drive or USB based external hard drive.

Jan 02, 2015 | Computers & Internet

2 Answers

How can I start when Default boot device missing


Good day Ken Markham
If your "Default Boot Device" is your hard drive and it is missing, then your machine will not start, you may need to have a technical person look on your machine for you.

Nov 20, 2014 | Computers & Internet

1 Answer

I cant get into setup when starting up computer it is a presario sr 1000 desktop


Restart your computer
During the boot process you will see on the screen to press a certain key to enter setup usually the Delete or F2 key
this will vary depending on your computer and operating system

Press and hold that key during the boot up process to enter BIOS
the using arrow key scroll down to advanced bios features press enter change your first boot device to cd,press escape then press f10 to save to cmos to restart

or

using the arrow keys load failsafe defaults or load optimized defaults press escape then press f10 to save to cmos to restart




hope this helps

Jul 29, 2012 | Compaq Computers & Internet

1 Answer

When device is getting on device is hanging in windows mobile version screen


If its not booting up correctly you can either clean boot the device or reflash the firmware. Note this will return trh device to its default state and loose any information stored on the device.

Clean Booting the CN50

If the CN50 seems to be locked up, try warm booting and then cold booting the computer. If neither method works, use a clean boot to get the computer up and running for further troubleshooting. When you clean boot, the CN50 only loads files and applications that are absolutely required by the operating system. A clean boot returns the CN50 to an "out of the box" or factory default state, so that you can run diagnostic tests to troubleshoot the normal boot processes:

To clean boot the computer using the mobile computer:

1 Remove the battery pack from the back of the CN50.

2 Reinsert the battery pack and press the Power button.

3 When the CN50 starts the boot process, simultaneously press <and > until the IPL Boot Configuration Menu appears on the screen.

4 Press 2 to select Force Clean Boot and then press 0 to select


Continue with Boot.

The CN50 executes the clean boot. This process takes a few minutes


The clean boot process erases the CN50 memory, including all applications and data files in the object store. To preserve applications through a clean boot, store them in the Flash File Store.


If you need any more help then please do not hesitate to contact us:-


helpdesk@biastechnology.com or TEL +44(0)1202 620955

http://www.biastechnology.com/

Jul 15, 2012 | Intermec CN50 Handheld Mobile Computer -...

1 Answer

I have to hit f9 and choose hard drive every time I need to to start my computer


You need to set your hard drive to default boot device in the bios. Cant tell you how for your specific computer though.

Apr 20, 2012 | HP Computers & Internet

1 Answer

My cursor stuck in the middle of screen on my pc windows xp sp3


Restart your computer
During the boot process you will see on the screen to press a certain key to enter setup
Press and hold that key during the boot up process to enter BIOS you can load failsafe defaults or load optimized defaults ,press escape then press f10 to save to cmos to restart
or
During the boot process tap the f8 button three times this will boot into safe mode where the only things working will be your mouse and keyboard enabling you to attempt to repair your computer
click start control panel administration tool computer managenent device manager scroll to mice and other pointing devices you might see a yellow question mark? right click to update drivers
make sure the lead from the mouse has a secure seating and the lead is not bad/faulty
(if applicable)
click start right click on my computer select properties device manager control scroll to mice and pointing devices you might see a yellow question mark? right update driver

Hope this helps

Jun 17, 2011 | Computers & Internet

2 Answers

I installed windows 7 onto my computer , now when my computer boots up it does not go directly to my hard drive and boot up windows 7. When the computer starts to boot I have to click the escape button...


Hi,

Open up the command line as an administrator or user w/admin rights (right click on the Shorcut > Run As and lets you run as an admin if your on a non-admin account)
2. type this command to see the current state of affairs.
bcdedit

you prob will see something like this (my original boot option)
__________________________________________
D:\Users\seamonkey> bcdedit
Windows Boot Manager
——————–
identifier {bootmgr}
device partition=C:
description Windows Boot Manager
locale en-US
inherit {globalsettings}
default {current}
displayorder {ntldr}
{current}
toolsdisplayorder {memdiag}
timeout 30
Windows Legacy OS Loader
————————
identifier {ntldr}
device partition=C:
path \ntldr
description Earlier Version of Windows
Windows Boot Loader
——————-
identifier {current}
device partition=D:
path \Windows\system32\winload.exe
description Microsoft Windows Vista
locale en-US
inherit {bootloadersettings}
osdevice partition=D:
systemroot \Windows
resumeobject {1ecfd635-a8ea-11db-bb9b-ddf07c6aaff1}
nx OptIn

to change the default boot os to 7 from xp use the command
bcdedit /set {ntldr} default “{bootmgr}” in the command prompt ,restart and then check .

all the best, hope this post helps you ...

May 29, 2010 | Computers & Internet

1 Answer

When i am start my pc then it shows me one error i.e. PCI is not found?


First of all start system last good known configureation. and 2nd option is Computer without hard drive and set cmos setup as default. if it don't work than disable PCI device from cmos and select firest boot harddisk

Mar 31, 2010 | Intel Motherboard

1 Answer

Bios settings?


these settings are related for boot up troubleshooting....system need startup point that is called boot up point.. Now there is sequence for search for boot up device that contain boot up point These device consist of floppy drive, hard drive, cd rom, usb drive and lan.....so try to set your boot device priority with hard drive as first device....this will solve your boot up problem....do reply back

Oct 02, 2009 | Computers & Internet

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