How can i remove microsoft windows 2000 form a dual boot system

First split the harddrive into two partitions. Install Windows 98 first. Put it on the first partions. Then install Win 2k on the second partition. If you attempt to install sin 2k first you will be unable to install win 98

If you have a valid Win XP Pro CD and want to install the operating system you'll need to format your hard disk drive. If you have allot of data on you're hard disk drive, (In Win 2000) Suggest you create a second partition within the free space of you're hdd and install windows XP Pro. Boot you're system with the XP CD. Pay close attention to the display screens. Follow the instructions for creating a second partition.
Format the new partition. (Quick). Install windows XP on the new partition. Once completed you can copy your personal data to win XP.
If you choose to keep the win 2000 partition and you do not wish to have a dual boot system than remove/delete the root files from the 2000 partition. These files; Autoexec.bat and Boot.ini. You're new XP Boot.ini should read like this;
[boot loader]
timeout=30
default=multi(0)disk(0)rdisk(0)partition(1)\WINDOWS
[operating systems]
multi(0)disk(0)rdisk(0)partition(1)\WINDOWS="Microsoft Windows XP Professional" /noexecute=optin /fastdetect /usepmtimer
Once you're satisfied an no longer need win 2000 use windows diskmgmt.msc from the run command to delete the win 2000 partition.
Win 2000 uses a FAT16 where Win XP uses the FAT NTFS.

Cheers!
Mike

Yes you need to setup both as dual boot. First install window 2000 and next install xp on same partition or different. It would dual boot with u setting up the preference.

NTFS YOU CAN SEE FAT 32 BUT FAT 32 YOU CAN'T SEE NTFS FILES.

Here is a step by step guide of how to dual boot.

http://apcmag.com/how_to_dual_boot_vista_and_xp_with_vista_installed_first__the_stepbystep_guide.htm

as far as i know you cant remove virus using CMD. try using antivirus pprogram.

thank you for using fixya
CHARCOIS

in bios setup usually under security you can remove user passwords.
you get into safemode for 2000 and in control panel and remove it form users administrator account
If your not interested in to os systems then you can format

Try going into the Bios setting and setting the boot order sequence with the CD as first booting device.

The Boot Configuration Data (BCD) store contains boot configuration parameters and controls how the operating system is started in Microsoft®Windows Vista.
Remove Windows Vista From Dual Boot System Windows Vista works slightly different from earlier versions of Windows when installed on a dual boot system, in that it has a completely different boot loader.
When Windows Vista is first installed as a dual boot operating system a new boot folder is added to the root directory of your PC. This is a hidden file and therefore is not noticed. When you boot your PC a menu appears with the following options:

• Earlier versions of Windows
• Windows Vista

Clicking the Windows Vista option will boot the PC into Windows Vista. If, however, you select the earlier versions of Windows option, another menu will appear from which you can choose Windows XP or whatever earlier version - Windows 2000 or Windows 2003 server - you installed first.
Because of this new boot loader it is not as easy to remove Vista from a dual boot system scenario. Simply deleting the Vista partition will, of course, remove Windows Vista, but, unfortunately, it will not remove the Windows Vista boot loader. For this reason, if you simply delete the Windows Vista partition, on rebooting your machine you will not automatically boot into Windows XP (or an earlier version). Instead you will once again be presented with a menu from which you have to choose which operating system you wish to boot to.
Obviously, once you have removed the boot loader and rebooted the Vista operating system will still be on the partition you originally installed it on. To remove Vista completely you will need to Delete the partition that Windows Vista was installed upon.
To remove this menu, or more to the point, the boot loader, proceed as follows:
1/ Boot the PC to Windows Vista
2/ Ensure you are logged onto the Internet and then download the freeware boot loader utility VistaBootPro (www.vistabootpro.org)
3/ Once you have downloaded VistaBootPro, install it on your machine
4/ During Install VistaBootPro will install an icon on your desktop
5/ Locate the VistaBootPro icon and Right Click on it. Then, from the drop down menu, Click on the Run As Administrator option
6/ User Account Control (UAC) will pop up and ask for permission to run the program
7/ After you have given UAC permission - you must be the administrator or have administrator privileges - VistaBootPro will run.
8/ Once VistaBootPro opens, Click on the Bootloader tab
9/ In the Bootloader Maintenance section, Click on the Radio button next to the option marked 'Uninstall the Vista Bootloader (Used to restore Legacy OS) option' and then Click the Apply button
10/ Finally Reboot your PC
11/ On rebooting your machine you will boot directly into Windows XP (or an earlier operating system). No menu will appear.
12/ All that is left to do now is to delete the partition which originally contained Windows Vista. (Assuming you wish to remove the Vista partition from your hard drive).

Boot to Vista. Then

• right-click "my computer", then "properties".
• click the "Advanced" section (Vista: on the left side bar).
• In the section that says "Startup and Recovery", click "settings".
• Under "Default operating system", choose "Windows Vista".
• REMOVE the checks next to "Time to display list of..." and "Time to display recovery options..."
• click ok to everything.

Now you will need to remove Windows XP.
IMPORTANT: for the next step make sure you boot to Windows Vista. Otherwise you could corrupt your computer.

• Go to "Start", "Control Panel"
• Open "Administrative Tools"
• next, open "Computer Management".
• On the left, there's a side bar. Under "Storage", click "Disk Management".

• Now, If windows XP is on drive C:\,
  right click C:\ and select "Format"
• Click "OK".

hope this helps.