Drive letters are being swapped around after every reboot

martinlest

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Oct 2, 2009
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This only started after I used Partition Wizard to add 8GBs of free space to an adjacent partition. It seemed to go fine: I chose to add the whole of the 8GBs and the partition was deleted. The adjacent partition grew by the same amount. I repeated the process for a second hard drive. So, I originally had the following drives & partitions, which showed fine in Windows Explorer and in Disk Management console:

Disk 0 (SSD): 1. System reserved 100MBs 2. C: 65GBs 3. X: 46GBs
Disk 1 (SATA): 1. P: 8GBs 2. E: 250GBs 3. F 674GBs
Disk 2 (SSD): 1. D: 112GBs
Disk 3 (SATA): 1. Q: 8GBs 2. G: 250GBs 3. H 674GBs

After deleting and the partitions 'P' & 'Q' and adding their space to 'E' and 'G' my current drives setup in Disk Management looks like this:

Disk 0 (SSD): 1. System reserved 100MBs 2. C: 65GBs 3. X: 46GBs
Disk 1 (SATA): 1. E: 258GBs 3. F: 674GBs
Disk 2 (SSD): 1. D: 112GBs
Disk 3 (SATA): 1. 258GBs 3. H: 674GBs

The problem is that in Disk Management the partition 'G' is blank - no drive letter is shown and no 'Healthy' or otherwise indication. Just the indication '258 GB', nothing else. If I right-click on the drive (still in DM, I mean) and choose to change the drive letter (or 'Properties'), I get an error message saying the operation failed because DM is not up to date... Refreshing DM or rebooting, as advised, makes no difference. The drive looks OK in Partition Wizard and I can access all the functions there. The partitions behave fine in Windows Explorer too. Virtual Disk service is running OK ...

I have run chkdsk on all partitions on my SATA drives and there are no errors. I then ran a surface scan of the the two SATA drives: again, after 3 hours on each, all showed green with no bad sectors.

The real annoyance is that every time I reboot the partitions 'E' and 'G' swap drive letters, and the drive label is therefore incorrect at every other reboot. I am able to set drive letters for all partitions in Partition Wizard, but those two don't stick.

After re-booting, DM looks like this (very different from above):

Disk 0 (SSD): 1. G: 258GBs 2. F: 674GBs
Disk 1 (SATA): 1. D: 112GBs
Disk 2 (SSD): 1. 258GBs 2. H: 674GBs
Disk 3 (SATA): 1. System reserved 100MBs 2. C: 65GBs 3. X: 46GBs

Any ideas what I can do to fix this? I don't think the drives themselves are faulty - something happened when running the partition wizard (as I knew it would!!! I am never lucky with this sort of thing, I nearly always get problems of one sort or another! I wish I'd just ignored the 8GBs now!). I could wipe the contents of 'E' and 'G', but I don't think that that is going to help. I certainly do not want to wipe any of the other partitions if I can possibly avoid it.

What a pain!!! I hope someone can help.

Thanks!

Martin