To put it simply,
If you do not have a Windows disk, use the MBRFix tool to fix it. Enter the cmd command window, and then enter the directory where the mbrfix tool is located (using the cd command ),
Enter the MbrFix/drive 0 fixmbr command, and then confirm. After the restart, you will find that without Linux, you can directly access Windows.
Delete Linux partitions: You can use the system's built-in disk management tool to delete partitions, or you can use the pm tool. Pm tool download
This method is simple, feasible, and recommended:
Method 1: How to uninstall Ubuntu in Win7 and Ubuntu Systems
1. Download The MBRFix tool, place it on drive c, and use a command prompt to enter the directory where the software is located. cd c: \ mbrfix (a space behind cd)
2. Enter MBRFix/drive 0 fixmbr/yes
3. after restarting, you can directly access Win 7. Now you can use Win 7 disk management (if it cannot be opened, you can use Win 7 optimization master to format the partition where Ubuntu is located (that is, there is no drive letter, when you select to delete the volume, the system will prompt that it is data from other systems ~~~
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If you delete the partition where Ubuntu is located directly in Windows 7, grub is also deleted, and Windows 7 cannot be guided. You can run the fdisk/mbr command on the installation disc to repair the boot zone, the following describes how to enter dos without a CD.
Download mbrfix.exe, copy mbrfix.exe to the root directory of the c drive, and run mbrfix/dirve 0 fixmbr/yes in cmd. If error: 5 occurs, right-click mbrfix.exe and select attribute to change the mbrfix compatibility to run as administrator.
Restart it again and delete the partitions occupied by Ubuntu in disk management under Win 7.
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Address: http://blog.csdn.net/scut1135/article/details/6888392