SDHC card error: The disk is write protected

Hi,

I am facing the following error:

1.I encrypted the drive (company polici) on computer 1

2. I red and wrote on the drive on computer 1 and 2 ok for some time.

3. After some time the error was raised on comp 2. I can still read.

4. I still can write and read on comp 1.

5. I removed the encryption by windows formatting: no change.

6. read on the net on this and followed instructions from:

http://ilanthaleer.blogspot.fr/2012/11/fix-disk-is...

no change.

This problem was created by the encryption use. How can I fix it?

Regards,

D