Dont paste long files like that into these forums, attach them. A search for "command" in your tweaks shows youre setting the file name completion character in two different places, and to 2 different values. I'm pretty sure 9 (TAB) is the correct value. 8 is the backspace key. ;----- Typing Long File Names In DOS ;----- [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Command Processor] "CompletionChar"=dword:00000009 ;----- cmd prompt enhancements: tab key completes path+filenames, UNC checks off ;----- [HKEY_LOCAL_MACHINE\Software\Microsoft\Command Processor] "CompletionChar"=dword:00000008 "PathCompletionChar"=dword:00000008 "DisableUNCCheck"=dword:00000001