How to uninstall dual system below Windows7

        For Windows7, I think many users are currently enabled in the case of dual systems. How to uninstall Windows7 under dual systems? Here I have compiled a little trick for users who need to uninstall Windows7.

1. Insert a good moment Windows7 CD-ROM (or CD-ROM loaded with a virtual image Windows7).

2. Click "Start" - "Run" command line window pops up.

3. Enter the command line window X:? Oot ootsect.exe /nt52all /force, and then press Enter?. (Note: X: represents your CD-ROM drive, or virtual CD-ROM drive, for example, if the DVD drive letter is F, then type F:.??. Oot ootsect.exe /nt52ALL /force)

4 Pop up the Windows 7 installation CD (or uninstall the ISO image file in the virtual drive).

5. Restart the computer, the computer will use the already installed a previous version of Windows starts. The webpage teaching network reminds everyone that the startup items of the Windows7 system are gone, the EarlyVersionwindows is gone, and only the startup items of Windowsxp are left, which is basically successful.

6. Windows7 manually delete files and folders, such as program files, users, and Windows folders. Or if there are no other important files, you can directly format the partition where Windows7 is located, saving time and trouble.