Safely uninstall the Windows2000 Road

Before uninstalling Windows 2000, it is necessary to understand the operating system. Before you format a hard drive, you can choose to use the entire hard disk as a partition or according to your actual needs. After the partition completes, it must be one of the partitions in the active state. No matter how many hard drives or partitions you have, Windows admits only a valid activation partition when the system starts up, you can use the Fdisk command on the win 9X Startup disk to view the status of the partition and make sure that the partition is active and the operating system is automatically assigned to the Activate partition letter C:\. When we install an operating system on the hard disk, the system boot file is always placed on the active partition C: Even if you assign the installation directory of the operating system to a different logical partition.

If you have only one operating system on your hard drive, the system boot file and the system itself are usually installed in the activation partition C:. If you have multiple operating systems installed on the same hard drive, the boot files for each system are also installed in C:. Having understood this, uninstalling Windows2000 becomes easier.

One, only Windows 2000 on the hard drive

The easiest way to uninstall Windows2000 is to boot with a Windows 9X system disk, and then quickly format a hard disk partition with Windows 2000, such as format C:/q, which deletes all the files on the hard drive, and then backs up the related files before determining the deletion. The Windows 9X system disk boot only identifies the hard disk partitions in fat and FAT32 format, and if your Windows 2000 is installed on an NTFS-formatted partition, the FDISK command is not recognized, displayed as an unknown partition (unknown partition), But we can still delete it.

If you don't want to format the hard drive and your Windows 2000 is installed on the Fat/fat32 partition, you can uninstall it by removing the Windows 2000 boot file. These boot files include boot.ini, Bootsect.dos, NTLDR, Ntdetect.com, and Ntbootdd.sys. Use the attrib-h-r-s c:\*.* command to remove the implied and System properties of the file before deleting it. Then use the deltree command to delete the WINNT directory and boot file. Also deletes the paging file Pagefile.sys and the "Hibernate" System settings Disk File Hiberfil.sys.

Ii. uninstalling Windows2000 in Windows 9X and Windows 2000 Multi-boot systems

You can use a Windows 98 system disk to boot the computer and then run the following command:

　　A: >sys c:
A: >deltree C:\WINNT
A: >deltree C:\boot*.*
A: >deltree C:\nt*.*
A: >deltree C:\hiberfil.sys
A: >deltree C:\pagefile.sys

Uninstall Windows 9X in Windows 9X and Windows 2000 Multi-boot systems

Uninstalling Windows 9X Display is simpler, removing Boot.ini read-only properties with the "Attrib-r c:\ Boot.ini" command, and then editing with Notepad to remove the text containing Windows 9X to ensure that default= The system in this line is Windows 2000 on your hard drive, not Windows 9X. You can also add [any text] above the Windows 9X for a simple mask. We illustrate the following examples:

　　[Boot Loader]
timeout=3
Default=multi(0)disk(0)rdisk(0)partition(1)\WINNT
[Operating Systems]
multi(0)disk(0)rdisk(0)partition(1)\WINNT="Microsoft Windows 2000 Professional" /fastdetect /nodebug
[any text]
C:\="Microsoft Windows Millennium Edition"

We can set the value of timeout= to 0 so that it does not show the multiple-system boot interface, but instead starts your Windows 2000 directly. Then remove the Windows and Program Files directory from the Windows 9X partition and remove the Windows 9X boot files: Io.sys, Msdos.sys, Command.com, and Autoexec.bat and Config. Sys

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