Command auto-completion in windows

1. Log on as Administrator,
2. Click Start, and then click Run,
3. Type Regedit and OK,
4. Double click HKEY_LOCAL_MACHINE,
5. Double click SOFTWARE,
6. Double click Microsoft,
7. Double click Command Processor,
8. In the right pane of Regedit, double click the 'CompletionChar' DWORD value,
9. Type 9 click OK,
10. Close Regedit,
11. Click start/programs/accessories/command prompt,
12. Type 'cd d' and hit the Tab key: the first folder that matches the 'd' letter is displayed (you can switch from folders pushing several times the Tab key).