Hey!! I hav c drive for programs n 22.7 gb unallocated space..but i cant extend c drive as the option is greyd out...help please....screenshot added... http://s18.postimage.org/g7n8po6w9/Untitled.jpg

If you are looking to extend your C partition, you cannot with your current configuration. You can only extend a volume that is adjacent to the unallocated space. Since you have a D and a G partition in the way, you cannot extend C partition. However, you could extend G since it is adjacent to the unallocated space. BTW, you need to fix your setup as you have issues with your G partition.

okies..thnxx!!jacky