Hello all,

I use Windows 7 x64. I usually run Disk Management on the right-click My Computer\Manage.
But after installing Paragon Hard Disk Manager 15, there's an error.. why?? So weird.. previously it's running well before install it.

What happened.. the pop-up says like this:
This file does not have a program associated with it for performing this action. Please install a program or, if one is already installed, create an association in the Default Programs control panel.

Please suggest me what should I do? Thanks in advance.