Turn Off Windows 10 Updates

1. Press the Windows logo key + R at the same time to invoke the Run box.

2. Type services.msc and press Enter.

3. Scroll down to Windows Update, and double-click it.

4. In Startup type, select Disabled. Then click Apply and OK to save the settings.

Solution 2. Change the Setting of the Group Policy Editor

The Group Policy feature is not available in the Home edition. So, only when you run Windows 10 Professional, Enterprise, or Education, you can use the Group Policy Editor to change the settings to prevent Windows 10 from automatically updating. The group policy editor will notify you of new updates without automatically installing them. 

• Press the Windows logo key + R then type gpedit.msc and click OK.
• Go to Computer Configuration > Administrative Templates > Windows Components > Windows Update.
• Double-click Configure Automatic Updates.
• Select Disabled in Configured Automatic Updates on the left, and click Apply and OK to disable the Windows automatic update feature.

Note: If you need to update your Windows version later, you can repeat the steps above, then select Enabled to turn on this feature, so that you can continue to download the updates