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Disabling Write protect on my drives?
How do I disable write-protect on my hard drives?
How do I disable write-protect on my hard drives?
If any of your dynamic drives has become read-only you can use diskpart to clear the readonly flag. Check the MS support article on the utility
A Description of the Diskpart Command-Line Utility
In sort, you launch diskpart from the command line, do a "list volume", then "select volume X" where X is the read-only volume and finally "attribute volume clear readonly".
Note that the volume has probably become read-only for a reason and this won't fix the problem. And you can not clear the readonly flag on XP unfortunately.