Pedro

I have Acronis 2014, my question is this. Recently I make a new partition to use it later, but I can see that Acronis is using a portion of it without permission, and now I can't delete because say that Acronis is using the partition, how can I deleted and leave it free for my own purposes.
And I would like to know what Acronis true image service do because I can see it working on my task manager processes.
Thanks for any help.