How to Enable Automatic Complete for Cmd Prompt (Cmd.exe)

File name completion and folder name completion are quick-search features of the Windows NT command processor, Cmd.exe. When you type a path or a file name and then press TAB, Cmd.exe searches for all files whose path and file name match your entry.

NOTE: Automatic complete for CMD.exe is not enabled by default in Windows 2000 and later.

When you type a path and then press the TAB key, the command processor searches for all files whose path (but not necessarily the file name) matches your entry. The command processor displays one of the matching file names each time you press TAB. To go backward through the list of file names, press SHIFT+TAB. This article describes how to enable automatic complete for Cmd.exe.

To enable automatic complete for Cmd.exe, use Registry Editor (Regedit) to view the following registry key:
HKEY_CURRENT_USER/Software/Microsoft/Command Processor
Edit the CompletionChar value, and set the value of REG_DWORD to 9. Note that you do not need to restart your computer.