HD-CEU2 Write protected and files will not delete or write to disk

[stuartK1966]

 

I have a DriveStation HD-CEU2. 

Operating System Windows Vista.

File Version 1.03.0

 

I have been using it for about two years as my primary back-up once a month.  When I went to use it last week the following message appeared.

 

The disk is write-protected. 

Remove the write protection or use another disk.

 

This message has never appeared before.  I have made no major changes recently to my computer.  There isn't a place where I can find the write protection.  I have tried a fix though CMD; using diskpart and list vol ; that was listed for another Buffalo but my settings were already correct.

[stuartK1966]

No, I haven't tried it on a different computer.  I will take it to work tomorrow and try it on muy laptop.