Backupe Exec 2012 - Force Remove deduplication disk

I have a problem to remove the deduplication disk from Backup Exec configuration after an accidentaly manual remove of the folder data on the disk.

Now when i try to remove the deduplication disk , i receive a message that the disk is used from a process , and i can't remove.

I changed the archiviation storage on the jobs , but the error continue.

There is a way to force the remove?