How to Uninstall Windows 7 from a Dual Boot Setup

If you have installed another operating system alongside Windows 7 and now wish to remove it, there are several methods you can use to clean up your system. This guide will provide detailed steps on how to do so effectively.

Method 1: Reinstalling Only One Operating System

The cleanest way to remove Windows 7 from a dual boot setup is by reinstalling just one of the operating systems. This can be done relatively quickly, typically taking about 20 minutes. This process involves formatting the partition where the unwanted OS is installed and then updating the bootloader to reflect the sole OS installation.

Step 1: Reinstalling Windows 10

Download and create a Windows 10 installation media using a tool like Media Creation Tool. Boot from the installation media and start the installation process. During installation, choose the partition that contains the Windows 7 installation and format it. Follow the on-screen instructions to complete the installation. Update the bootloader to reflect the sole Windows 10 installation.

Method 2: Formatting the Partition with Linux Files

If you prefer not to reinstall Windows, you can format the partition containing the other OS without erasing data. This leaves the drive usable for other purposes and allows you to clean up your bootloader.

Step 1: Identify the Partition

Make sure you have made your system dual boot using two different drives. Identify the drive where the OS to be removed is installed.

Step 2: Backup Important Files

Taking a backup of all relevant files in the drives' Downloads and Documents folders is recommended, as you may need them later.

Step 3: Use msconfig to Remove OS from Startup

Open Command Prompt as Administrator. Type msconfig and press Enter to open the System Configuration utility. Go to the Boot tab. Select the OS you wish to remove and click the Delete button. Alternatively, remove it from the list. Set the default operating system to the one you want to keep. Click Apply and then OK.

Using BIOS to Format the Drive

If you prefer to use the BIOS to format the drive, follow these steps:

Restart the machine and enter the BIOS mode. Select the drive where Windows 7 is installed. Format the drive and delete or merge it if necessary, ensuring the Windows 10 drive remains intact. Save the changes and restart the system.

Cleaning Up the Bootloader

After removing the OS, you may still see two operating systems at startup. To address this:

Access the advanced startup settings in Windows. Uncheck the option to display the list of operating systems. Set the default operating system to the remaining one (e.g., Windows 10).

By following these detailed steps, you can effectively remove Windows 7 from a dual boot setup, leaving you with a clean and optimized system.