Now the mainstream brand randomly installed operating systems on the market are generally Windows XP. However, some users may still have a special liking for operating systems such as Windows 98, Windows ME or Windows 2000. They hope to install the above operating systems without destroying the original operating system. According to conventional reasons, if we do not use third-party software, when installing Microsoft's Windows series operating system, we should install it in sequence from the lower version to the higher version; if we use third-party software, it will involve the copyright and usage of the software used, which is obviously inappropriate for ordinary users. In fact, according to the method we provide in this article, the reverse dressing of the operating system can be achieved without using any third-party software, and it is very simple! For example, my Lenovo brand computer has Windows XP Home Edition installed in the C area of my hard disk. The file format of the C area is FAT 32, and the file system of other partitions is also FAT 32. Use this article to install Windows 98, C zone and the file system that installs Windows 98 partitions need to be converted to FAT 32, otherwise a third-party startup software is required. Of course, if the file format is NTFS, we can use the software "Partition Magic" to convert it losslessly to FAT 32. Preparation: Supports the startup of the Windows 98/ME Windows 98/ME; files (can be copied from the Windows\Command folder to the boot disk or decompressed from it). step: Part One:
Install Windows 98/ME operating system 1. Put the Windows 98/ME installation CD into the optical drive; 2. Use the prepared boot disk to start the computer; 3. Install the operating system according to the normal method of installing Windows 98/ME; just do not install Windows 98/ME in the partition where Windows XP is located; 4. After installation, boot the computer to the Windows 98/ME operating system. Part 2:
Modify the "BOOTSECT.DOS" file
After installing Windows 98/ME operating system according to the above method, the necessary startup files for Windows XP will be modified. We need to modify the "" file to repair its startup files. 1. Open "Notepad" or other text editing software to create "" (the file name can be changed), the content is as follows:
L 100 2 0 1
N C:\
R BX
0
R CX
200
W
Q 2. Copy the above-made files to the startup disk; 3. Use the boot disk to start the computer to DOS; 4. Modify the file properties of "" and use the following command:
ATTRIB C:\ -S -H -R 5. Enter: DEBUG at the command prompt
Part 3:
Repair Windows XP 1. Modify the startup options in the BIOS so that the computer can boot from the optical drive; you can also use the startup disk you just made to start the computer, and then enter f:\i386\ (f is the drive letter of the optical drive) at the command prompt to run the installation command; 2. When installing Windows XP, we need to select the "Repair" item to repair the installed operating system in the hard disk; 3. Select the operating system you need to log in, usually "1", type "1", and enter the administrator password (set during installation, users who install Lenovo brand computers with Windows XP home version only need to press Enter); 4. Type "FIXBOOT" at the command prompt to repair the startup file of Windows XP; 5. Take out the Windows XP installation disc in the optical drive, restart the computer, and modify the boot options in the BIOS, and set it to boot from the hard disk. Now you can see the startup menu of Windows XP and be able to select the operating system you need to enter. After restarting the computer, we can select the operating system we need to start. Isn't it very simple? Part 4:
Install Win2000 under WinXP
After installing Windows XP, installing Windows 2000 is much easier than installing 98 or ME. The methods mentioned in this article do not use third-party software, and can be operated on FAT32 or NTFS file formats. 1. First, open the "Control Panel", select "Folder Options" and double-click, select "View" in the "Folder Options" window, and remove the "√" before "Hide protected operating system files" in "Advanced Settings" to display the two system files we need: "NTLDR" and "NTDETECT.COM"; 2. Copy the above two files to a floppy disk; 3. Modify the boot options in the BIOS to boot the computer from the CD and run the installation operation program of Windows 2000; 4. Install Windows 2000 according to the normal method; 5. After the installation is completed, boot the computer to Windows 2000; 6. Copy the above two files we copied to the floppy disk to the root directory of Area C; if the system prompts that it cannot be copied, the user needs to modify the properties of the above two files and remove their "read-only" and "hidden" properties. Note: We do this here because the Win XP versions of "NTLDR" and "NTDETECT.COM" support startup of Windows 2000, but the latter does not support startup to the former, so we need to perform the above operations.