Windows 7 and Ubuntu dual hard drive systems cannot be accessed after Ubuntu is deleted. solution:

Originally, I installed Windows 7 and Ubuntu on two hard disks. Recently, I tried to use wubi for installation, because wubi only supports two systems to be installed on the same hard disk, after wubi is installed, you will not be prompted to restart your computer. Today, the original Ubuntu hard disk is installed, but Windows 7 cannot be entered. The following solution is provided:

Start with the win7 boot disk when starting the system, select repair computer, Enter command mode, enter bootrec/fixmbr to complete the operation, and then restore the boot menu, which is very simple and practical.

This is because wubi is quite convenient to install ubuntu. We recommend that you use this method for installation.