I uninstalled Acronis true image home 2012 from my computer and my HDD (USB 2.0) doesn't show up in My Computer, but does in "device manager". First it showed "Windows cannot load the device driver for this hardware. The driver may be corrupted or missing. (Code 39)" but I fix this with http:// forum.acronis.com/forum/25509#comment-83865 tutorial.
In Disk Management section don't show my HDD too.
But others programs like "MiniTool Partition Wizard Home Edition 7.1" shows my HDD.
Sorry for English and thanks for any help!!!