"Turn" Win7, Ubuntu dual system properly uninstall Ubuntu system-Good

Original URL: http://my.oschina.net/u/1377657/blog/281872

If Ubuntu is not installed in the Wubi way, but a USB flash drive or CD-ROM dual system, then uninstall Ubuntu should be cautious, not directly delete the Ubuntu partition so simple, otherwise you will find that your Windows system will not get in. That's because if you install Ubuntu, you write grub to the MBR (Main Boot Record), which is/DEV/SDA, (if you get a gurb menu every time you start up, the instructions are written to the MBR). So when you uninstall Ubuntu, you rewrite the MBR to remove the Ubuntu gurb.

The correct way to remove the Grub boot menu that displays red Ubuntu on startup is as follows:

First, repair MBR

1. Under Win7, download Mbrfix under C:\windows\system32 (only to not reconfigure environment variables).

Attach the MBR, point me to the Download guide page.

2. Win + R, enter cmd, enter DOS command line

3. At the command prompt, enter mbrfix/drive 0 fixmbr/yes, return

4. OK, the MBR has been repaired, restart the computer will find no Red grub boot interface, directly into Windows. (For next reload Ubuntu, boot entry under boot, boot without Ubuntu starter shoes, please see my other blog post: Ubuntu reload, direct into the Win7, not into the Linux solution (add Ubuntu boot menu))

Second, remove and reload Ubuntu

1. Under Win7, on the computer (computer), right-click Management (Manage), Disk Management (diskmanagement), remove several of the volume labels that you installed on Ubuntu.

2. Re-install. (It should be a lot of people don't want to be in/DEV/SDA again) please see my other blog.

3. If installed in the new boot (200M) partition, the opportunity does not have the Ubuntu option, please refer to the blog.

"Turn" Win7, Ubuntu dual system properly uninstall Ubuntu system-Good