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Windows 7: Converting Dynamic drive to Basic drive without data loss.

22 Apr 2013   #11
jumanji

Windows 7 Home Premium 32 bit
 
 

Hi Reverse,

I am glad to note that you used Hex editor to change the dynamic disk to basic. That of course is one of the easiest things one should try first. You probably changed one byte 42 to 07. Right? Now I am just curious to know whether you did it for the third partition also? ( Since you had three partitions, you would have seen three strings of 16 byte length partition data. Since partition 1 and 3 were showing RAW, did you change 42 to 07 in both partition no.1 and partition no.3?)

Usually, when it is a single partition and you change 42 to 07 in the only partition string you see, the drive will immediately change to basic, and not only that it will show the correct format also, say NTFS and you will be able to access it with no further action.

In your case that did not happen that is why I am wondering whether changing the byte for the third partition also could have made it and resolved your problem.

Anyway, that is only a post-mortem, and now that your whole drive shows RAW, you may use two approaches to see whether you can access the drive.

1. Boot from a live Linux CD/pendrive

2. try Partition Recovery Wizard in the recent version of Partition Wizard again


My System SpecsSystem Spec
.
24 Apr 2013   #12
Reverse

Windows 7 64
 
 

Quote   Quote: Originally Posted by jumanji View Post
Hi Reverse,

I am glad to note that you used Hex editor to change the dynamic disk to basic. That of course is one of the easiest things one should try first. You probably changed one byte 42 to 07. Right? Now I am just curious to know whether you did it for the third partition also? ( Since you had three partitions, you would have seen three strings of 16 byte length partition data. Since partition 1 and 3 were showing RAW, did you change 42 to 07 in both partition no.1 and partition no.3?)

Usually, when it is a single partition and you change 42 to 07 in the only partition string you see, the drive will immediately change to basic, and not only that it will show the correct format also, say NTFS and you will be able to access it with no further action.

In your case that did not happen that is why I am wondering whether changing the byte for the third partition also could have made it and resolved your problem.

Anyway, that is only a post-mortem, and now that your whole drive shows RAW, you may use two approaches to see whether you can access the drive.

1. Boot from a live Linux CD/pendrive

2. try Partition Recovery Wizard in the recent version of Partition Wizard again
I did not have 3 lines of Hex Data. Im not really sure why, but there was only one line. I changed it to 7, rebooted, and it showed up as a single drive. Im not quite sure why it did this, but it worked nonetheless. 1c0 was the only line that was populated.



I was able to read the drive with Minitool Power Data Recovery. I havnt started sorting through it, but after a 3 hours scan my files were intact, at least many of them. Its a lot of stuff to sort through, and Im not even sure what Im looking for because most of my photos and important stuff is backed up. Im mostly just worried about those few things that do not come to mind until after I reformat the drive and set it back up.
My System SpecsSystem Spec
25 Apr 2013   #13
jumanji

Windows 7 Home Premium 32 bit
 
 

Yep, in the current status I see only one partition string. ( It may be because you had already used many partitioning/recovery programs including rebuild MBR. I only wish you had backed up the first sector before trying any of it.)

Notwithstanding, you can be rest assured that all your data is still there.

While I do not recommend aborting any recovery process that you have already initiated - let it complete, I would still recommend you try the Partition Recovery Wizard in the latest version of MiniTools Partition Wizard.

Do a Quick scan and if it does not find the partitions, do a Full scan. If all the partitions are found, you will see it reflected in the disk map. If it does reflect your original disk partitions, then you can safely apply the changes and it will rewrite the partition table in the first sector and you should be able to see and access your disk as before ( since it has already become a basic disk)

If it succeeds, nothing like that for you can straight away access your disk, without needing to recover and copy elsewhere.

If it does not, and you are not happy with MiniTools Power Data Recovery which you are running now, you can look into using a Live Linux CD/pendrive - does not take much time to make one- and then PhotoRec.
My System SpecsSystem Spec
.

25 Apr 2013   #14
Reverse

Windows 7 64
 
 

Quote   Quote: Originally Posted by jumanji View Post
Yep, in the current status I see only one partition string. ( It may be because you had already used many partitioning/recovery programs including rebuild MBR. I only wish you had backed up the first sector before trying any of it.)

Notwithstanding, you can be rest assured that all your data is still there.

While I do not recommend aborting any recovery process that you have already initiated - let it complete, I would still recommend you try the Partition Recovery Wizard in the latest version of MiniTools Partition Wizard.

Do a Quick scan and if it does not find the partitions, do a Full scan. If all the partitions are found, you will see it reflected in the disk map. If it does reflect your original disk partitions, then you can safely apply the changes and it will rewrite the partition table in the first sector and you should be able to see and access your disk as before ( since it has already become a basic disk)

If it succeeds, nothing like that for you can straight away access your disk, without needing to recover and copy elsewhere.

If it does not, and you are not happy with MiniTools Power Data Recovery which you are running now, you can look into using a Live Linux CD/pendrive - does not take much time to make one- and then PhotoRec.
Yes, I rebuilt the MBR after I got it converted. Ive got Partition Recovery running on it right now like you suggested.
My System SpecsSystem Spec
25 Apr 2013   #15
Reverse

Windows 7 64
 
 

Ive ran Minitools Power Data Recovery as well as EaseUS Data Recovery on the drive. I cant find anything that I dont have backed up so Im going to wipe it and get it usable again.

Big thanks to everyone for the advice.
My System SpecsSystem Spec
25 Apr 2013   #16
jumanji

Windows 7 Home Premium 32 bit
 
 

Glad to know that you successfully confirmed that you have no data to be lost, by whatever means you adopted.

To safeguard against problems of this nature where the HDD turns turtle due a corrupted first sector, I would recommend that you back up the first sector of all your internal and external HDDs. It is easy then to restore the first sector and bring it back to the original condition.

You may use MBR Backup 2.0 MBR Backup 2.0 Released | TrojanHunter Blog for that.

Converting Dynamic drive to Basic drive without data loss.-mbrbackup2.jpg

Note: The backed up first sector pertains to that particular partition setup. If you change the partition setup you must take a fresh backup and discard the old one.


My System SpecsSystem Spec
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 Converting Dynamic drive to Basic drive without data loss.




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