Windows 7 Built-in Partition Tool: Disk Management
Windows 7 built in Disk Management is a free tool for users to manage their partitions. Right click "Computer" on the desktop to choose "Manage", on the left of open window, you will find Disk Management in "Storage".
With the help of Disk Management tool in Windows 7, users could do some simple operations of disk partition management, like create partition, format partition, delete partition, and the new (compare with XP) function of Windows 7 to shrink volume or extend volume. You can right click one partition to select new function.
Microsoft adds the new function to assist users manage their partition size without third-party partition tool. In the former Windows XP, 2000, 2003, there is no option of free built-in tool to resize partition. There were only two ways, reinstall operation system or purchase Partition Magic (a powerful partition tool in the past).
Symantec, the owner of Partition Magic, announced that their partition tool would not support for Windows 7, which has influenced a lot at that time. When Windows 7 released, some users believe that they would never need the help of third-party tool to resize partition with the new function. In general, the new function in partition tool Windows 7 built in could only solve some simple task for users, as for complicate task, it doesn't work, sometimes you will find the "Extend Volume" is grayed out, which means this function doesn't work. (You could visit "Extend volume grayed out Windows 7")
Best Hard Disk Partition Tool for Windows 7
In order to solve "extend volume grayed out" problem, users always want to choose software to help them manage their partitions easily and safely. As the latest partition magic Windows 7, AOMEI Partition Assistant Pro Edition contains many functions, such as resize partition, convert FAT32 into NTFS, align partition, merge partitions, allocated free space, migrate OS to SSD or HDD, convert GPT/MBR, convert dynamic disk to basic disk, etc. And it also has the friendly interface for users to follow the guide.
You could download AOMEI Partition Assistant Pro Edition to experience the magic.