Cannot Boot, Drive C: has became X: after Blackout

GThib

Well-Known Member
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
 


livix07

Active Member
Greetings,

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

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
Please back up all your important files before doing this (you can do it by using a Linux live-cd/dvd):


I don't believe that your drive letter was modified by the blackout.
 


GThib

Well-Known Member
Thank you very much for your piece of advice.

Indeed, the problem appeared after a surge. Bizarrely my laptop M6600 start itself every time the is the surge.
I have got two NAS connected to it that had to restarted in the same moment.
This time the laptop could not started as described.

Later today I will furnish you with all detailed Window messages.

I have already tried renaming drives using disparut feature. As far as I recall while using list volume there were two volume listed, one as my secondary disk and the second windows repair CD.

One list disk was used I got disk 0 only listed which seemed to be the main, ssd x:.

Thus I could not managed to assign a letter C to the proper drive.

I have a full Nova Backup Image Backup.
Once restoring I stopped the action not being certain if I could restore all content of my backed C drive on the drive which is present on the list as a disk 0.

When restoring I have two disk listed to be used as a destination.
1. disk 0 - ancient C
2. disk C - ancient secondary one.

Can I perform safely this restore pointing the disk 0 as the destination one?
How about the second one called C at present? Will it take a previous letter?

As far as I know the drive letters are stored in the registry?

The last one:
Could it be possible to use Bootable Partition Manager to fix this?
If yes I would appreciate any guidance.

Thank you in advance.
 


Neemobeer

Windows Forum Team
Staff member
The letters are logical assignments. While in the recovery console the letter on the OS may change and it's a non-issue. You should be able to determine which one is your OS either my just looking at the file system or from the output of diskpart.

Once you've determined the drive I would run chkdsk on the correct drive as well as run sfc
 


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