For a Microsoft Windows 2000 version of this article, see 101668.
This article describes how to guard against a situation when it is not possible to start Windows or any other operating system on your computer. This situation can occur when Windows is installed on a computer that has an Intel x86-based processor and the boot record for the active partition or files that are required to start Windows becomes corrupted.
To guard against this situation, create a Windows boot disk when you firstinstall Windows on the computer. This disk is different from an MS-DOSboot disk. Unlike MS-DOS, the entire Windows operating system cannot fit on one floppy disk. A Windows boot disk contains only the files that are necessary to start the operating system with the remainder of the Windows system files installed on the hard disk drive.
Use the following procedure to create this disk:
Place a blank floppy disk in drive A, and format the disk by using Windows XP.
From the root folder of the system partition of your hard disk drive (for example, C:\-), copy the following files to the floppy disk:
Boot.ini NTLDR Ntdetect.com
You may have to remove the hidden, system, and read-only attributes from the files.
You may have to remove the hidden, system, and read-only attributes from the files.Restore the hidden, system, and read-only attributes to the files on your hard disk if you removed these attributes.
You may have to remove the hidden, system, and read-only attributes from the files.If either theBootsect.dosor theNtbootdd.sysfile resides in the system partition, also use the procedure that is described in steps 2 through 4 to copy these files to the boot disk.
If you format a floppy disk in Windows XP, the boot record points to the NTLDR file. When NTLDR runs, it loads the available operating systemselections from the Boot.ini file. If you select Windows, NTLDRruns Ntdetect.com, and then passes control to Osloader.exe. If you selectMS-DOS or OS/2, NTLDR loads Bootsect.dos.