RealBeast :
Are you logged in as an administrator?
StorageDevicePolicies should have two keys default without any value set and WriteProtect with a value of zero.
If that doesn't seem to work and you want to use the diskpart method you also need to be logged in as an administrator AND right click run the command prompt as an administrator.
Right click run command prompt as administrator
type in the window "diskpart"
type in the window "list volume"
type in the window "select volume #" where # is the problem disk
type "attributes disk clear readonly" and then type "attributes volume clear readonly"
Then restart and try the disk.
HI,
As of yesterday, this is how the StorageDevicePolicies key looks in the right window:
Name Type Data
ab(Default) REG_SZ (value not set)
abWriteProtect REG_SZ 0
When I powered up my pc today, I still had the same write protection error message as before when I tried to access the Maxtor drive files. So, I tried the diskpart method, as you suggested. Here is the command window dialogue:
Microsoft Windows [Version 6.1.7601]
Copyright (c) 2009 Microsoft Corporation. All rights reserved.
C:\Windows\system32>diskpart
Microsoft DiskPart version 6.1.7601
Copyright (C) 1999-2008 Microsoft Corporation.
On computer: MIKE-PC
DISKPART> list volume
Volume ### Ltr Label Fs Type Size Status Info
---------- --- ----------- ----- ---------- ------- --------- --------
Volume 0 D DVD-ROM 0 B No Media
Volume 1 RECOVERY NTFS Partition 13 GB Healthy System
Volume 2 C OS NTFS Partition 359 GB Healthy Boot
Volume 3 E MyData NTFS Partition 1023 GB Healthy
Volume 4 I Removable 0 B No Media
Volume 5 J Removable 0 B No Media
Volume 6 K Removable 0 B No Media
Volume 7 L Removable 0 B No Media
Volume 8 H OneTouch4 P NTFS Partition 931 GB Healthy
DISKPART> select volume 8
Volume 8 is the selected volume.
DISKPART> attributes disk clear readonly
DiskPart failed to clear disk attributes.
DISKPART> list volume
Volume ### Ltr Label Fs Type Size Status Info
---------- --- ----------- ----- ---------- ------- --------- --------
Volume 0 D DVD-ROM 0 B No Media
Volume 1 RECOVERY NTFS Partition 13 GB Healthy System
Volume 2 C OS NTFS Partition 359 GB Healthy Boot
Volume 3 E MyData NTFS Partition 1023 GB Healthy
Volume 4 I Removable 0 B No Media
Volume 5 J Removable 0 B No Media
Volume 6 K Removable 0 B No Media
Volume 7 L Removable 0 B No Media
DISKPART>
As you can see, the 'attributes disk clear readonly' command did not work and now the Maxtor drive, volume 8, is no longer in the volume list.