Now you can one folder is created in C drive in the name Dell (It shoud be created,if it is not there,that means your unzipping is not done)
Then go to command Prompt by typing CMD command in RUN dialogue box from start menu.
Here k is the partition which you want to extend and 10000 is the amount of size in MB.(I want to extend k drive,so its k, if your going to increase C drive,it should be C.)
Done!now You can see the new volume size.