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What is the correct boot sequence for a computer, I am trying to regonfigure my MBR so my computer can load properly and execute the files correctly

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  • bondthecobra May 28, 2010

    Thank you Steve this helps me out a whole lot and gives me something futher to look into

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Hi well the normal boot sequence is C (hard drive 0) D drive (cd rom) any other device this also depends on weather you have an A drive floppy disk, if so it will be A drive ( floppy disk ) C drive ( hard drive 0 ) D drive (CD-ROM ) -Any other device...
but you can disable the floppy drive in the bios, you can also if you want choose the drive you want to boot from by pressing F12 as the PC starts up, this will take you to a boot menu so you can choose which one to boot from hope this helps

Posted on May 28, 2010

  • steve morris
    steve morris May 28, 2010

    not a problem pleased to help, anything else you need just re message on here and i will get back to you as soon as i can..cheers

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Gateway zx4800 MBR is corrupt..error code = 0 x 57...too, need to know correct boot sequence


Windows installation CDs and DVDs have a number of system repair and recovery tools included that can get almost any computer back on its feet after a bad crash or faulty operating system installation. One very common problem that comes up when installing a second operating system is a corrupted Master Boot Record, or MBR. Windows System Recovery has tools that can fix a corrupted MBR, but if you don't have an installation CD or CD drive to put it in, you're going to need to copy the recovery materials to another medium, like a USB drive. If your MBR is corrupted, you probably don't have access to your Windows installation, so you'll have to follow most of these steps on another computer.
b> Insert the USB drive into another computer and run a command prompt window by typing "cmd" into the search box of the "Start" menu and hitting "Enter." Enter "mkdir X:\boot," and "mkdir X:\boot\sources" where X is the drive letter of your USB drive. Type "cd" and press the "Tab" key once, then hit "Enter." Enter "xcopy /H boot.sdi X:\boot," "xcopy /H Winre.wim X:\sources\boot.wim," "xcopy /H c:\windows\boot\dvd\pcat\bcd X:\boot," "xcopy /H c:\windows\boot\dvd\pcat\en-US\bootfix.bin X:\boot," and "xcopy /H c:\windows\boot\pcat\bootmgr X:\" to copy the necessary files to the USB drive. Enter "attrib -r -s -h /s X:\*" Enter "diskpart" to run the DiskPart program, then enter "list disk." The window lists the drives connected to your computer. Find your USB drive in the list and enter "select disk X", where X is the letter of your USB drive. Enter "list partition" to see the partitions on the drive and then "select partition X," where X is the number of the partition listed. Insert the USB drive into your computer and turn the computer on. Allow it to boot from the USB drive. You may have to set your USB drive as a primary boot drive in the computer's BIOS first. Enter your computer's BIOS (by tapping Delete or F2 during bootup, on most computers), then put your USB drive at the top of the "Startup" list. Go to the "Startup Repair" option in the "System Recovery Options" window. The "Startup Repair" process should correct your Master Boot Record and allow Windows to boot normally again. You will probably lose access to any other operating systems installed on your computer, though, since this recovery option is only designed to get Windows working again.
Hope this helps.

Dec 29, 2012 | Gateway ZX4800-06 (PWG8502023) 20 in. PC...

1 Answer

Reboot and select proper boot device or insert boot media in selected boot device and press a key


Hello cdcrowley2, it seems that the "problem is the [Operating System] is not loading correctly." The CPU is trying to find or fix the 'loading' of the OS!

Follow these instructions
To get the Computer to "Boot into the OS and "Loading Windows."
  • Restart the Computer
  • Next, just before the [Page] that you mentioned, "Displays," {Press the F12} button.
  • This will open the "Boot Menu:" [Priority Boot Sequence] window.
  • There will be a "list" of (Devices), Optical Drive / CD, SATA / HardDisk Drive, or USB...
  • I do not know the "Configuration of your Operating System" or the Drive: that "holds the Boot [NTLDR] files.
  • It may also hold the "Master Boot Record" or Boot.ini file?
  • So, what you need to do is give the Drives a "Priority Boot Sequence," meaning , you will 'place' the Drives in the 'order' of Bootup [First] listings.
  • You will use the {Arrow buttons} to 'move the "Drives."
  • More than 'likely' it will be the (*Optical Drive / SATA or Hard Disk Drive}.
Try each, and hopefully the Computer will make it to "Windows," and you can "Login!"

If this information helped? Return and give a "Helpful Rating," please!
Thanks, paul7of9

Feb 27, 2011 | Acer Computers & Internet

2 Answers

Test media failure Operating system not found


Hello zyrenic, it seems that the "problem is the [Operating System] is not loading correctly." The CPU is trying to find or fix the Bootup into 'loading' the OS!

Follow these instructions
To get the Computer to "Boot into the OS and "Loading Windows."
  • Restart the Computer
  • Next, just before the [Page] that you mentioned, "Displays," {Press the F12} button.
  • This will open the [Priority Boot Sequence] window.
  • There will be a "list" of (Devices), Optical Drive / CD, Sata / HardDisk Drive, or USB...
  • I do not know the "Configuration of your Operating System" or the Drive: that "holds the Boot [NTLDR] files.
  • It may also hold the "Master Boot Record" or Boot.ini file?
  • So, what you need to do is give the Drives a "Priority Boot Sequence," meaning , you will 'place' the Drives in the 'order' of Bootup [First] listings.
  • You will use the {Arrow buttons} to 'move the "Drives."
  • More than 'likely' it will be the {HDD, or Optical Drive}.
Try each, and hopefully the Computer will make it to "Windows," and you can "Login!"

If this information helped? Return and give a "Helpful Rating," please!
Thanks, paul7of9

Feb 17, 2011 | Computers & Internet

2 Answers

I bought a compaq laptop computer, when i turn it on it says, no bootable disk-- insert bootable disk and press any key.


You either have a failed hard drive or else a virus has corrupted the partition on the hard drive so it isnt found by windows. I am willing to bet that your hard drive had reached the end of its life. If this is the case you can get a new one and have your operating system re-installed by a friend or family member that is comfortable in doing so. Loading the operating system isnt that difficult with the correct CD's. If you have Vista or Windows 7 then most of the drivers will install automatically. If you have XP then that is a bit more involved as you will have to install most of the drivers that are required.

Feb 17, 2011 | HEWLETT-PACKARD Hewlett Packard HP Compaq...

1 Answer

I have a HP Pavilion Elite m 9357c that willnot boot up. The screen goes black and says Disk Boot Failure,Insert system Disk and press enter


If it happens that you are prompted by the following error message "DISK BOOT FAILURE INSERT SYSTEM DISK AND PRESS ENTER", "No system disk", it means that the computer did not find the operating system to start (boot).

Causes:


A diskette or CD has remained in the drive

Check out if any diskettes, CD-ROM or DVD-ROM are present in respective drives, remove them and restart your computer

The boot sequence is incorrect BIOS



Enter the BIOS setup of your computer and edit the boot (boot sequence) so that the computer starts primarily on drive C:
A new hard drive was installed

In the case that a new hard drive has been installed, this message is quite normal.
Just insert the correct CD to install the system (usually Windows), then restart, while making sure the CD-ROM is first in the defined in the BIOS setup as first boot sequence.
The hard drive is unplugged

Open the system unit and check that power cable of the hard drive is properly connected.
Corrupted system files

It may happens that some system files needed to boot the computer have been deleted /damaged or that the boot sector of the disc is damaged.

To determine this, start the computer with a system disk or CD-ROM installation of Windows (via the Recovery Console), and once started, type Dir C: to check if the contents of drive C: are accessible. If its ok then the problem comes from missing or damaged files, then you just have to run the command:

fdisk /mbr
sys c:



Note that before any restoration of the boot sector with the command fdisk / mbr, (supposing that there is a virus), it is recommended to use an antivirus running under DOS, such as
f-prot.
http://support.microsoft.com/kb/166454/en-us
http://support.microsoft.com/kb/69013/en-us
Damaged disk

If the hard disk or a partition is damaged:
If it detected in the BIOS setup, there is a chance that it is
not out of service.
If it is, try reinstalling the system through the installation CD, in order to reformat or recover the partition using a utility.

Feb 03, 2011 | HP Media Center m7260n (EG642AA) PC...

2 Answers

What does it mean when it says NTLDR is missing?


It's me that windows NT loder LDR is missing
if this file (NTLDR) is missing windows can not boot
so you have to make an upgrade or reinstall your operating system
vote please :)

Dec 26, 2010 | Acer Aspire One Netbook

1 Answer

My Computer Wont Boot Any Kind of Disk


First and foremost, Asus motherboards are garbage, avoid all asus products in the fututre.

You have to set the CD player up as first boot device. If you've done that and it still won't boot from the CD player, the player could have failed or is not connected correctly.

You may have to load software into the bios to start the CD player. Try to find a floppy disk that has CD support files on it. Boot from the floppy to load the CD drivers, and then search the CD for the executable file that you want to run

Sep 20, 2009 | ASUS P4S533-MX Motherboard

5 Answers

This Acer AST 160 I'm working on crashed...


Computer stops at verifying dmi pool data. Issue: Computer stops at verifying dmi pool data.
Cause: This issue can be caused by any of the below reasons.
  1. Corrupt boot files on the computer.
  2. Settings for hard disk drive are not correct.
  3. Floppy diskette or CD in computer causing issue.
  4. Boot devices not set properly.
  5. BIOS corrupt or misc. setting not set properly.
  6. Connections loose or disconnected.
  7. Bad Hard disk drive or other bad hardware.
Solution: Corrupt boot files on the computer
If the computer has no bootable files on the drive it is attempting to boot from it is possible that the computer may halt at " verifying dmi pool data..."
To resolve this issue:
  • Boot from a bootable floppy diskette. Ensure that this diskette was made on the same Microsoft Windows operating system that is installed on your computer.
  • Once at the A:> prompt type "sys c:" and press enter. This should report the message "File system transferred." Once transferred remove the diskette and reboot the computer.
If the computer continues to not boot attempt to re-create the master boot record by booting from the bootable floppy diskette again. Once at the A:> prompt type "fdisk /mbr" and press enter. This should return you to the prompt without giving you any message. Once at the prompt remove the diskette and reboot the computer.
Additional information about the "fdisk /mbr" command can be found on document CH000175.
Note: The above information only applies to Microsoft Windows users. If you are running a Linux / Unix variant or other operating system such as OS/2 and the computer is freezing at this DMI message ensure that Linux / Unix has been properly installed first and/or your boot manger is not corrupt.
Settings for hard disk drive are not correct
The computer freezing at "Verifying dmi pool data..." may be caused when the hard disk drive settings within CMOS are not set properly. Enter CMOS and verify that the hard disk drive settings are set properly and/or that it is set to Auto Detect. Additional information about entering CMOS setup is found on document CH000192.
Floppy diskette or CD in computer causing issue
Verify no floppy diskette or CD is in the computer. In some cases the computer may be trying to boot from either of these drives causing issues with the boot sequence.
Boot devices not set properly
The computer stopping at " verifying dmi pool data..." can be caused when the boot devices on your computer are not set properly in CMOS. First, verify that no CD or diskette is in your computer. If a CD or diskette is in the computer attempt to remove this first to determine if it was attempting to boot from it.
If No CD or diskette is in the computer and your computer still halts at the DMI message enter CMOS setup (steps found on document CH000192) and verify that the boot options are set properly. We commonly recommend that the floppy be set the first boot device, hard drive as the second boot device and the CD-ROM as the third boot device.
BIOS corrupt or misc. setting not set properly
If none of the above recommendations have resolved your issue

Sep 10, 2009 | Acer Aspire T160 (AST160UA3400) PC Desktop

1 Answer

Boot sequence manual


When you hit the power button on your computer a whole lot of stuff happens. We call this the boot process. In the days when I first started using computers there was literally a "boot disk", a floppy (5.25" not a 3.5") disk that told the system where to go and what to do so that the operating system would start up. Since then the boot sequence has become somewhat more complicated. So let me take you thru the steps the computer takes to get started. For my example I'm going to use a Windows XP system.
  1. First is the POST, this stands for Power On Self Test, for the computer. This process tests memory as well as a number of other subsystems. You can usually monitor this as it runs each test. After that is complete the system will run POST for any device that has a BIOS (Basic Input-Output System). An AGP has its own BIOS, as do some network cards and various other devices.
  2. Once the POST is complete and the BIOS is sure that everything is working properly, the BIOS will then attempt to read the MBR (Master Boot Record). This is the first sector of the first hard drive (called the Master or HD0). When the MBR takes over it means that Windows is now in control.
  3. The MBR looks at the BOOT SECTOR (the first sector of the active partition). That is where NTLDR is located, NTLDR is the BOOT LOADER for Windows XP. NTLDR will allow memory addressing, initiate the file system, read the boot.ini and load the boot menu. NTLDR has to be in the root of the active partition as do NTDETECT.COM, BOOT.INI, BOOTSECT.DOS (for multi-OS booting) and NTBOOTDD.SYS (if you have SCSI adapters)
  4. Once XP is selected from the Boot Menu, NTLDR will run NTDETECT.COM, BOOT.INI and BOOTSECT.DOS to get the proper OS selected and loaded. The system starts in 16-bit real mode and then moves into 32-bit protected mode.
  5. NTLDR will then load NTOSKRNL.EXE and HAL.DLL. Effectively, these two files are windows XP. They must be located in %SystemRoot%System32.
  6. NTLDR reads the registry, chooses a hardware profile and authorizes device drivers, in that exact order.
  7. At this point NTOSKRNL.EXE takes over. It starts WINLOGON.EXE that in turn starts LSASS.EXE, this is the program that display the Logon screen so that you can logon.

Nov 05, 2008 | Computers & Internet

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