Updated: 06/22/2018 by Computer Hope

C: promptWhen referring to computers, C: is commonly used to denote the C drive or the first primary hard drive on IBM compatible computers. In Windows, a user can get to the C: drive by opening My Computer. Typically, this drive is also labeled as Local Disk or Primary Drive. In the picture below, is an example of how the Primary Drive (C:) may look in Windows 10.

Local Disk (C:) in Windows

A:, D:, Drive letter, Hard drive terms