WINDOWS 1002000 PROFESSIONAL RESOURCE KIT [Electronic resources] نسخه متنی

Removing Windows 2000 Professional from Your Computer

IMPORTANT

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Before removing Windows 2000 Professional from your computer, make sure to back up all important data.

Before removing Windows 2000 Professional, make sure you know where Windows 2000 Professional is installed, what you want to remove, and how your hard disk is partitioned and formatted. The following sections describe how to remove Windows 2000 from your computer:

"Removing Windows 2000 Professional from the Boot Sequence"

"Removing a Primary NTFS Partition"

"Removing Windows 2000 Professional Files"

NOTE

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If the hard disk contains a partition using the NTFS file system, remove this partition from within Windows 2000 before removing Windows 2000 from the boot sequence.

Removing Windows 2000 from the Boot Sequence

You can remove the Windows 2000 boot sector from your computer in two ways.

You can use an MS-DOS boot floppy to start MS-DOS, and then type:

sys c:

This command replaces the Windows 2000 boot sector with the MS-DOS boot sector and allows your computer to start MS-DOS. The following files remain in the root and %SystemRoot% folder and can be deleted after you perform this operation:

Hyberfil.sys (located in %Systemdrive%)

Pagefile.sys (located in %Systemdrive%)

Boot.ini

Ntldr

Ntdetect.com

Ntbootdd.sys

You can also start your computer with a Windows 95 or Windows 98 bootable floppy disk and use the sys c: command to return to your original configuration.

You can leave the Windows 2000 boot sector on the disk and start MS-DOS without being prompted by changing the startup operating system and time-out value.

To change the startup operating system and time-out value

Click the Start button, point to Settings, and then click Control Panel.

In Control Panel, double-click the System icon, click the Advanced tab, and then click Startup and Recovery.

Click the Default operating system list, and then select MS-DOS.

In the Display list of operating systems for <n> Seconds box, type or select 0 (zero).

NOTE

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If the primary partition was converted to NTFS, to return to starting MS-DOS automatically, reformat the drive and reinstall MS-DOS.

Removing a Primary NTFS Partition

Modifying the primary, bootable NTFS partition does not typically succeed for the following reasons:

MS-DOS versions 5.0 and 6.0 do not recognize an NTFS partition. the MS-DOS program Fdisk reports an NTFS partition as an OS/2 high-performance file system (HPFS) partition.

You cannot modify or delete an NTFS partition from within an existing partition.

To delete or modify a primary NTFS partition, use any of the following methods:

Start MS-DOS by using a Windows 95 or Windows 98 boot disk, then run fdisk and delete the non-MS-DOS partition.

Run the Windows 2000 installation from floppy disks or the Windows 2000 operating system CD. Choose D to remove the partition when you are prompted.

CAUTION

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Make sure you back up all important data before removing the Windows 2000 files from the computer.

You can delete the following Windows 2000 Professional folders to free additional disk space:

Program Files

Documents and Settings

Winnt

Debug

NOTE

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The folder name for Winnt might vary.