How to uninstall Windows XP operating system

        Phenomenon: The operating system I used was Windows 98, and later I installed Windows XP. The first installation was installed from Windows 98. After installing it, it didn't feel very good. After formatting the Windows XP partition, it was reinstalled from DOS to D drive. After installation, I found that there are three multi-boot menus (first install). Windows XP is still there, how can I delete the extra one? In addition, if I want to delete Windows XP, in addition to formatting the D drive, how can I completely delete it? The boot menu of the Windows 98 and Windows XP dual system is controlled by a file in the root directory of the C drive. The boot menu can be changed by modifying the file. To delete redundant Windows XP projects, you can open the boot.ini file in the root directory of the C drive. There are two lines of duplicate "multi(0)...", delete one of them. In order to completely remove Windows XP, in addition to formatting its partition, you must also delete the multi-boot menu and redundant system files as follows: (1) Make a Windows 98 boot disk and Windows 98 The sys.com file is copied into the system disk. (2) Start with the boot disk and execute the sys C: command under A:>. (3) Delete the extra files in the root directory of the C drive. These files include: boot.ini, bootfont.bin, bootsect.DOS, ntdetect.com, pagefile.sys, and so on.