Can I convert dynamic disk back to basic disk

August 28, 2010 at 21:54:46
Specs: Windows 7 64bit, i-5
After shrinking the D: on Disk 0 under Windows 7 Home, Disk 0 has been converted to a dynamic disk. However, I found out my backup device Segate Replica CANNOT perform backup on a dynamic disk. I have seen some software which claim it can convert a dynamic disk back to a basic disk. However, I really suspect whether this can be done on Disk 0 without losing any data. The worst result for this action could be losing all data and require a complete re-install. In that case, I would prefer to live with the Dynamic Disk 0 w/o using the backup device.

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#1
August 29, 2010 at 04:29:25
In that case, I would prefer to live with the Dynamic Disk 0 w/o using the backup device

I believe the above may be your best option. While you can reconvert Dynamic disk back to Basic disk using diskpart command line tool, you will have to reckon with the following caveat:

After you convert a basic disk to a dynamic disk, you cannot change the dynamic volumes back to partitions. Instead, you must delete all dynamic volumes on the disk and then use the Convert To Basic Disk command. If you want to keep your data, you must first back it up or move it to another volume..

i_Xp/Vista/W7User


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#2
August 29, 2010 at 04:38:05
Microsoft not supporting the conversion of dynamic disk back to basic is not some arbitrary restriction. The reason is that is cannot be done reliably.

The only (relatively) safe way to do this is to do a complete backup of the drive, reformat it, then restore all data.


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