How to use Disk Management

To start Disk Management:
Log on as administrator or as a member of the Administrators group.
Click Start, click Run, type compmgmt.msc, and then click OK.
In the console tree, click Disk Management. The Disk Management window appears. Your disks and volumes appear in a graphical view and list view. To customize how you view your disks and volumes in the upper and lower panes of the window, point to Top or Bottom on the View menu, and then click the view that you want to use.
How to create a new partition or a new logical drive
To create a new partition or logical drive on a basic disk:
In the Disk Management window, complete one of the following procedures, and then continue to step 2:
To create a new partition, right-click unallocated space on the basic disk where you want to create the partition, and then click New Partition.
To create a new logical drive in an extended partition, right-click free space on an extended partition where you want to create the logical drive, and then click New Logical Drive.
In the New Partition Wizard, click Next.
Click the type of partition that you want to create (either Primary partition, Extended partition, or Logical drive), and then click Next.
Specify the size of the partition in the Partition size in MB box, and then click Next.
Decide whether to manually assign a drive letter, let the system automatically enumerate the drive, or do not assign a drive letter to the new partition or logical drive, and then click Next.
Specify the formatting options you want to use by using one of the following procedures:
If you do not want to format the partition, click Do not format this partition, and then click Next.
If you want to format the partition, click Format this partition with the following settings, and then complete the following procedure in the Format dialog box:
Type a name for the volume in the Volume label box. This is an optional step.
Click the file system that you want to use in the File system box. You can change the disk allocation unit size, and then specify whether to perform a quick format, or enable file and folder compression on NTFS volumes.Click Next.
Confirm that the options that selected are correct, and then click Finish.The new partition or logical drive is created and appears in the appropriate basic disk in the Disk Management window. If you chose to format the volume in step 6, the format process now starts.
How to format a basic volume
To format a partition, logical drive or basic volume:
In the Disk Management window, right-click the partition or logical drive that you want to format (or reformat), and then click Format.
In the Format dialog box, type a name for the volume in the Volume label box. This is an optional step.
Click the file system that you want to use in the File system box. If you want, you can also change the disk allocation unit size, specify whether you want to perform a quick format, or enable file and folder compression on NTFS volumes.
Click OK.
Click OK when you are prompted to format the volume. The format process starts.
How to view the properties of a basic volume
To view the properties of a partition or logical drive:
In the Disk Management window, right-click the partition or logical drive that you want, and then click Properties.
Click the appropriate tab to view the appropriate property.
How to delete a partition or a logical drive
To delete a partition or logical drive:
In the Disk Management window, right-click the partition or logical drive that you want to delete, and then click Delete Partition or Delete Logical Drive.
Click Yes when you are prompted to delete the partition or logical drive. The partition or logical drive is deleted.Important
When you delete a partition or a logical drive, all the data on that partition or logical drive, and the partition or the logical drive, are deleted.
You cannot delete the system partition, boot partition, or a partition that contains the active paging (swap) file.
You cannot delete an extended partition unless the extended partition is empty. All logical drives in the extended partition must be deleted before you can delete the extended partition.
Troubleshooting
Disk Management displays status descriptions in graphical view and under the Status column of list view to inform you of the current status of the disk or volume. Use these status descriptions to help you detect and troubleshoot disk and volume failures. The following is a partial list of disk and volume status descriptions:
OnlineThis is the normal disk status when the disk is accessible and functioning correctly.
HealthyThis is the normal volume status when the volume is accessible and functioning correctly.
UnreadableThe disk is inaccessible because of possible hardware failure, corruption, or I/O errors. To troubleshoot this issue, restart the computer or rescan the disk to try and return the disk to Online status. To rescan the disk, open Computer Management, and then click Disk Management. On the Action menu, click Rescan Disks. For a complete list of disk and volume status descriptions and troubleshooting procedures, see Disk Management Help. In the Disk Management snap-in or Computer Management window, click Help on the Action menu.