How to remove scan disk when windows start
It happened almost all the time when windows are improperly shut down after a troubleshoot that scandisk will run on the next reboot to check the contents of the hard disk. (see below image)
chkdsk is a command that check the disk surface whenever there is physical errors. To disable to chkdsk, you must run the Registry Editor (regedt32.exe)
Under the HKEY_LOCAL_MACHINE subtree, go under:
\SYSTEM\CurrentControlSet\Control\Session Manager
then change the BootExecute entry to:
autocheck autochk *
Finally exit the registry and restart your computer to save setting made to windows.
Note that this function is applicable for windows 2000 and windows XP.