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Tech Helproom


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NTDLR is missing - PC won't boot


Lightman

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Switched on my PC today and it won't start, it gets as far as the ASUS splash screen and then goes to a black screen showing "NTDLR is missing". I have used Bootable Partition Wizzard and this reports that all partitons on the main HDD are there (1TB split into 4 equal partitions) but the main/system partition is showing no name or letter, all the others carry names. I have Acronis reports which I could attach if required, but based on info provided already does anyone have any ideas? OS = XP SP3. I have Acronis backups but don't know if this will work with the partition having no name.

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Lightman

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Drive C: is SATA (slot 2) and Drive D: is IDE. A second SATA drive is the CD/DVD (slot 3). Slot 1 is empty and was occupied by the CD/DVD but I moved it to 3 because the PC wasn't recognising the drive, it was recognised after I moved it from slot 1 to 3. The really frustrating thing is that it has worked OK for the last year or so, it decided to play up for no apparent reason 2 days ago.

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robinofloxley

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I 'accidentally' copied an MBR from my Main drive to ext USB drive once and caused problems.

You could try the Update MBR function of Partition Wizard on your 2nd drive to clear it. Probably wise if main SATA drive is disconnected.

Or change your boot order in BIOS to:

CD/DVD

USB

SATA Drive

IDE Drive.

It should never get chance to try and boot from IDE drive then.

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Lightman

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I tried doing what robinofloxley suggested, but first the PC needed me to update the BIOS, time & date had reverted to the year dot. Once done, I set about doing as rol suggested only to find that the bios had reverted to floppy, HDD, CD; I reset this as instructed to get the Partition Wizzard to fire up on boot up, Updated the MBR after having first disconnected the main HDD. When I rebooted after reconnecting everything I got the missing NTDLR message again. Is the fact that the BIOS is not keeping the settings I put in indicative of the fact that the battery night be flat? The other odd thing is that the boot order I have set is, CD, HDD, Floppy but I don't have a Floppy drive in the machine.

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Fruit Bat /\0/\

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  1. Get a new CMOS Battery but don't pay PC world prices WIlkinsons stores are half the price.

  2. With a new battery in place set the boot order as CD first, HDD second the rest do not matter.

with CD as first boot device it will allow you to boot from a rescue disk or XP CD if required.

See what happens when you have the new battery in and BIOS set correctly make sure Time and Date is also rest correctly in BIOS

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Eric10

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Once you have sorted out your CMOS battery, enter the BIOS screen and look in the "BOOT" section. When more than one hard drive is fitted you get an option to choose which drive to boot from. This option is not available when only one drive is fitted.

This is in addition to "Boot Device Priority" which has options to boot from CD, HDD, etc.

On my Asus motherboard this comes under the heading "Hard Disk Drives" and you will find your hard drives listed here. Your boot drive needs to be in the "1st Drive" position. I suspect that the drive you want to boot from is presently listed in the "2nd Drive" position and you will need to move your boot drive up to the top of the list.

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Lightman

Likes # 0

Have now replaced the CMOS battery, corrected BIOS settings as suggested, everything now working fine, thanks to all.

Just out of curiosity how do I set the system so that when a CD/DVD is put into the drive the contents appear on the screen or it autoruns if thats how the disk has been created? At present I have to go into explorer to find the required files.

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northumbria61

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For Autorun - when you insert a CD/DVD right click on your drive in Computer and select Autorun.

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