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    Cannot Boot-After Blackour Boot Drive Has Changed the Letter

    Discussion in 'Windows OS and Software' started by Tofik, Jul 26, 2018.

  1. Tofik

    Tofik Notebook Enthusiast

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    Greetings,

    I would be deeply thankful for any guidance on resolving the strange issue:

    After a blackout My Dell M6600 laptop cannot boot at all.
    I have had a certain Intel messages on missing links, scanning MAC address, etc.

    Finally using a repair disk I have found that (I have two drives installed) the boot drive C: has become X: and the other, storage one has taken a letter C:.

    I have an acces to cmd via Window 7 repair disk.
    Alas I have no idea how to change/revert the boot drive letter to become C: (instead of X :).

    I will appreciate any helpful suggestions.
    Many huge thanks in advance.

    Dell M6600 mobile workstation
    Windows 7 Pro 64 bit
     
  2. Mr. Fox

    Mr. Fox BGA Filth-Hating Elitist

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    You are seeing two drives because the Windows 7 repair disk is creating a virtual memory disk to run the repair utility. You should see an option for startup repair. Try choosing that and see if the repair disk will correct any issues in the boot manager.

    If there was a surge of some kind it may have damaged your drive or corrupted the OS.

    If you browse drive X: can you see folders such as C:\Windows and C:\Program Files (x86) on that drive? If so, that might be a positive sign that the drive is still working correctly and no data has been lost.

    Do you see an error message or BSOD attempting to boot normally? If so, what does the error message say? If it gives you a STOP code, what is the code showing on the screen?

    If you go into the BIOS, can you see the drive?

    If the rest of the hardware is working fine, you may need to reinstall Windows if the repair disk cannot fix the startup problem.
     
  3. Tofik

    Tofik Notebook Enthusiast

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    Thank you very much for your response.
    I am on the way to work.
    As soon as I be back I will furnish you with all detailed information and exact Windows infos.

    PS
    Meanwhile if you do not mind...

    I have a full Nova Backup Image Backup.
    Trying restore it I have found in available restore destination two disk:
    1.disk 0 - my ancien C
    2. disk C - previous secondary one.

    Can I pont this first (disk 0) as the destination to restore the system?

    Bizarrely my laptop started itself Avery time a surge occurred.
    Not this time.
    It has been connected to two NAS drives connected via a router which had to restart simultaneously in case of the surge.
    Perhaps this fact caused changes?

    Once more I do thank you.

    PS
    Would for instance MiniTool Bootable Partition Recovery Tool help fixing the problem?
    https://www.partitionwizard.com/partitionmanager/bootable-partition-recovery-tool.html
     
    Last edited: Jul 27, 2018
    Mr. Fox likes this.
  4. Mr. Fox

    Mr. Fox BGA Filth-Hating Elitist

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    Yes, there is no reason I can identify that it would not work. I use drive images for recovery frequently.

    Sure, it may have. Power fluctuations can cause all sorts of issues.

    The Mini-Tool Partition Recovery tool is really good. I own it and use it, but using Windows Startup Repair would be my first choice, or restoring a full drive images the second choice. Both of those are quick and easy options.
     
  5. Tofik

    Tofik Notebook Enthusiast

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    What a good news!
    Thank you.

    As far as I understand I can safely restore my full image backup of my original C: (system, main drive) into something called disk 0 (originally C :)?
    Even if my second drive (listed in NovaBackup restore choice window) is named as C: (my originally secondary drive G :)?

    After restoration should both drives recover their proper letters?
    (disk 0 will become C and C (bastard one) will become G?)

    I would be most obliged if you could confirm the above or... refute.

    I will try to rename the drives via partdisk.
    If I am not wrong:

    The system drive originally C: has not been listed in list volume command.
    List volume has given me two volumes:
    1. Windows Repair CD
    2. My secondary disk

    Whilst using List disk only 'disk 0' has been listed - not certain which.

    Would you mind suggesting me a procedure of fixing the problem (what option to apply) using MinTools Bootable Partition Recovery?
    I would be really thankful.

    I do not want to risk to make things worse and I'd rather get access to current content instead of restoring a two-month-old image backup.
    Once more many thanks.
     
    Last edited: Jul 27, 2018
  6. StormJumper

    StormJumper Notebook Virtuoso

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    This is more telling of the situation your having. Means something got fried during the blackout and if your laptop didn't have a Surge protector you can guarantee something went along with blackout besides your boot drive. Only way to know is get a working drive clean and see if your computer can reboot or reformat that drive to work again with Factory Image REcovery media if they or you still have it. That is the only real test to know what is damaged or not damaged during the outage.
     
  7. Tofik

    Tofik Notebook Enthusiast

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    Thank you.

    Exactly as you said on my very modest information.
    Finally I have discovered that my Samsung 850 EVO 1Tb has been COMPLETELY dead.
    It is not seen by the system neither via usb attached adaptor.

    I have already ordered an UPS unit and contacted the seller for the replacement (apparently it covered by 5-year-warranty).
    Fortunately I have a full image backup that can be restored on non-system drive. Hope so.

    I have witnessed several power outages but this has been the first time it has caused a complete ssd failure.

    Once more thank you for your response.