Updated: 09/12/2023 by Computer Hope

ERD may refer to any of the following:

emergency repair disk

1. Short for Emergency Repair Disk, an ERD is a diskette that creates backups of system files and settings and helps troubleshoot and fix issues for Windows NT and Windows 2000 users. The ERD is used with the Windows repair option and prompts for the diskette when needed. Note: The ERD is not to be confused with a standard boot diskette, as it cannot be used alone.

ERD capabilities

  1. Verifying the boot sector is not corrupt.
  2. Repairing any startup files.
  3. Locate any missing or damaged system files.

2. An ERD (entity relationship diagram) is a diagram similar to a flowchart illustrating how objects or other concepts relate. For example, the following ERD is showing the relationship in a database.

Schema entity relationship diagram

ASR, Computer abbreviations, Operating system terms, Schema