How to delete a dual system

Computer users with dual operating systems often encounter a problem, that is, how to delete one of the systems. Dual system refers to installing two different operating systems on one computer at the same time, such as Windows and Linux. Occasionally, a user may no longer need one of the systems, or want to free up disk space, or wish to remove it for other reasons.

Removing an operating system may sound like a complicated process, but it's actually quite simple. The following will introduce in detail how to delete a loaded dual system.

First, it is important to back up your computer data. Before removing the operating system, you need to ensure that you back up all important files and data to other storage devices to prevent accidental data loss.

Next, you need to determine which operating system you want to remove. If you simply want to remove one of the operating systems and keep the other, you'll need to determine which system you want to remove. Typically, when people start their computer, they see a menu with operating systems they can choose to boot. Note the name of the system you want to remove.

The method of removing an operating system varies from operating system to operating system. The following will explain how to delete Windows and Linux operating systems respectively.

For Windows operating systems, you can follow the steps below to remove it:

1. Select "Control Panel" from the Start menu.
2. In Control Panel, select "Programs".
3. In the "Programs and Features" page, select "Uninstall a program".
4. In the list of installed programs, find the Windows system you want to remove.
5. Click on the program and select "Uninstall".
6. Follow the instructions of the uninstall wizard to complete the operation.

Please note that deleting the Windows operating system will delete all files and programs of the system. Make sure to back up your data before proceeding.

For Linux operating system, you can follow the steps below to delete:

1. Start the computer and enter the Linux operating system.
2. Open "Terminal".
3. Enter the following command to gain administrator privileges:
   sudo su
4. Enter the following command to view the installed operating systems:
   lsblk
   In the output, find the device where the Linux system you want to delete is located, usually /dev/sdX (X represents the device number).
5. Enter the following command to unmount the mounted partition:
   umount /dev/sdXY
   where sdXY represents the partition to be unmounted.
6. Enter the following command to delete the partition:
   rm -rf /dev/sdXY
   Please be careful and make sure you enter the correct partition number.
7. Repeat the above steps until all relevant partitions are deleted.
8. Enter the following command in the terminal to update the boot record:
   sudo update-grub
9. Restart the computer.

Please note that deleting the Linux operating system will delete all files and programs of the system. Just like when removing a Windows operating system, make sure to back up your data before proceeding.

No matter which operating system you want to remove, it is recommended to back up your data before performing the operation. Some additional steps may also vary depending on operating system version and personal settings.

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