D:

D:‏‎ is a drive letter in the file system of many personal computers. The drive letter system is used to differentiate different physical or logical drives and partitions. The letter D is often used for optical drives, secondary hard drives, or other storage devices.

Overview

In the context of Windows operating systems, D:‏‎ is typically the second drive letter assigned to fixed disk drives, following the primary drive C:. However, the assignment of drive letters can vary depending on the configuration of the system. For example, if a system has multiple hard drives, or if a single drive is partitioned into multiple volumes, these may be assigned the drive letters D:, E:, and so on.

Usage

The D:‏‎ drive is often used for storing data separate from the operating system. This can be beneficial for a number of reasons. For example, it can make it easier to back up or transfer data, and it can help protect data in the event of a problem with the operating system.

In some cases, the D:‏‎ drive may be a recovery partition. This is a special partition that contains files and tools used to restore the system to its factory settings, or to repair problems with the operating system.

See also

• Drive letter assignment
• Disk partitioning
• File system
• Hard disk drive
• Optical disc drive