How to Enable Auto Complete in Command Prompt ( cmd )

Log on as Administrator

Click Start, and then click Run (or press Winkey+R)

Type `Regedit` and click OK (or press Enter)

Double click HKEY_LOCAL_MACHINE

Double click SOFTWAREDouble click Microsoft

Double click Command ProcessorIn the right pane of Regedit, double click the 'CompletionChar' DWORD value

Type 9 click OK (9 is the ASCII number of the Tab character)

Close RegeditRun command prompt and enjoy.