BCDEDIT.exe

http://diddy.boot-land.net/bcdedit/files/commands.htm

http://technet.microsoft.com/en-us/library/cc709667%28v=ws.10%29.aspx

http://www.howtogeek.com/wiki/Bcdedit

CHKDSK at BOOT !!

To disable automatic disk check at boot Windows, go to the following registry key:
HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control \ Session Manager
In the right pane, click 2 times on BootExecute. The default value for this parameter is set to autocheck autochk *