When the virus have attack to your computer and the open command is not working while double clicking the mouse to the drive. Then you can solve this problem by just editing a simply registry command. Here are the process:
Run Registry Editor
Go to
Start >> Run >> (type) regedit >> (rightclick on the title my computer icon, and export the whole thing.)
Then find "MOUNTPOINTS2" using Ctrl + F
Delete the same
Repeat the process unless all the "MOUNTPOINTS2" are deleted

Now your system will be OK.