Trouble Is That My Hard Disk Partition Is Not Opening Through Double Click.

Many-times if a virus infects a windows operating system which causes a drive opening problem, It automatically creates a file which named autorun.inf in the root directory of each drive.

This autorun.inf file is a read only, hidden and a system file and the folder option and task manager option is also disabled because of a particular virus. This is deliberately done by the virus in order to protect itself.  autorun.inf initiates all the activities that the virus performs when you try to open any drive.

You have to just delete this file and restart your system to shoot this problem correctly.