
Using the msconfig utility tool allows you to select the default OS you’d like to boot directly into when you restart your computer, or delete one of the two OSes. To uninstall one of the operating systems on dual boot computer, you can delete the target OS in System Configuration, or delete the partition where OS that you want to get rid of is installed. Thus, the following two methods are worth trying. After the deletion, you can boot your computer from the recovery drive and then use troubleshooting to overwrite the Linux boot loader with the Windows boot loader. Therefore, you also need to create a Windows 10 recovery USB disk in advance. If you install Linux system and Windows 10 or 11, deleting Linux partition may affect the bootloader. If that is your case, you may need to remove dual boot in Windows 10/11 without affecting the other OS.īefore trying to delete the OS from dual boot, it is recommended to create a system backup of the OS that you do want to keep just in case anything goes wrong during the process. Some of them actually only use one of the systems. Many users have installed two different operating systems (OS) on the same hard drive. One is windows 10 and another one is Ubuntu. I want to remove one of them: Ubuntu. Preparation for safe dual boot removal in Windows 10/11Ģ Methods to delete dual boot in Windows 10/11 Windows 8 and up, as well as WinPE 4 and up, support booting with Secure Boot enabled.Need to remove dual boot partition in Windows 10/11 You'd only need to disable Secure Boot if you're trying to install/boot a Linux OS that doesn't support it (although in that case you'd need to disable it every time you wanted to run that OS) or if you're trying to boot some other very old bootable environment, such as Windows 7 installation media or some sort of recovery tool that's built on a very old version of WinPE.

In most cases when people do this it's because they think it's necessary to install an OS or they're having trouble booting something, and in most cases it isn't necessary and Secure Boot isn't the reason they're having trouble booting. However, be aware that there are very few legitimate cases where you need to turn off Secure Boot, especially temporarily. Then you can use the same process to switch back to "UEFI Mode On, Secure Boot On" later. The easiest way is to press F12 during system startup to access the one-time boot menu, then select the option called "Boot Mode Settings" or something like that, and then one of the options will be "UEFI Mode On, Secure Boot Off".
