i had 4 partitions of my hard drive and operating system was windows 7 . when i installed windows 8 , one of my partition got disappear and didnt show in MY COMPUTER . in order to solve the problem i updated the windows to 8.1 but even then the partition in not being shown in MY COMPUTER . can any one please guide my how to get my partition back . remember that the particular drive is being shown while installing new windows but w=once the window is installed and starts working, the partition doesnt show in MY COMPUTER i.e total 3 partitions are shown out of 4.