

Furthermore, it still doesn't work if the free space is in "Extended Partition". Why did extend volume grey out? Because if we want to extend volume, we should firstly make sure there is no partition between the original partition and free space. However, sometimes when we want to extend volume, we cannot select extend volume as it is greyed out. And slower computer speed will also return to fast.

The 2 features are shrink volume and extend volume.īy using the feature of extend volume, we can enlarge C drive partition to store more files. In order to meet this kind of needs, Microsoft provides 2 features in Windows Vista, Window 7/8 and Windows Server. Slower and slower computer speed makes an emergently need to extend C drive partition. After a long-time using, most of us will someday find the C drive partition is not enough to store more data files.
