Open command windows here without holding shift key

This is tested and works in Windows 7.

Delete these three keys to enable "Open command windows here" by right click in every folder:

reg delete "HKCR\Drive\shell\cmd" /v "Extended" /f
reg delete "HKCR\Directory\shell\cmd" /v "Extended" /f
reg delete "HKCR\Directory\Background\shell\cmd" /v "Extended" /f

To set back defaults use

reg add "HKCR\Drive\shell\cmd" /v "Extended" /t REG_SZ /d "" /f
reg add "HKCR\Directory\shell\cmd" /v "Extended" /t REG_SZ /d "" /f
reg add "HKCR\Directory\Background\shell\cmd" /v "Extended" /t REG_SZ /d "" /f