I'm assuming you mean a floppy startup (DOS) disk.
Put a floppy in the disk drive
Open My Computer and right click on that drive
Select the Format menu option
Check the "create an MS-DOS startup disk"
Click the Start button
Good luck!
--
Randy Byrne
Microsoft MVP - Setup/Deployment
http://support.microsoft.com/support/mvp
Associate Expert
http://www.microsoft.com/windowsxp/expertzone
Do not email me, please use the newsgroup so that everyone benefits.
"reza" <(E-Mail Removed)> wrote in message
news:10f901c38cc6$1f4cb580$(E-Mail Removed)...
> how can create startup disk in windows xp?
> thank