On Windows 10 pro, use the Local Group Policy editor or the Registry to disable automatic updates permanently. While automatic updates remains disabled, you can still download and install patches using Radia Patch Manager. Once you complete the steps, Windows 10 Pro will stop downloading updates from Microsoft automatically.

Disabling updates using gpedit.msc

To permanently disable automatic updates on Windows 10, use these steps:

1. Open Start.
2. Search for gpedit.msc and select the top result to launch the experience.
3. Navigate to the following path:
Computer Configuration\Administrative Templates\Windows Components\Windows Update
4. Double-click the Configure Automatic Updates policy on the right side.
5. Check the Disabled option to turn off the policy.
6. Click the Apply button.
7. Click the OK button.
8.Open a command prompt as administrator and run the following command.

gpudate /force

 
Disabling updates via the Registry

If you're running Windows 10 Pro, you can also disable automatic updates using the Registry.

Warning: This is a friendly reminder that editing the Registry is risky, and it can cause irreversible damage to your installation if you don't do it correctly. It's recommended to make a full backup of your PC before proceeding.

To permanently disable Windows Update using the Registry, use these steps:

1. Open Start.
2. Search for regedit and select the top result to launch the experience.
3. Navigate to the following path:
HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows
4. Right-click the Windows (folder) key, select New, and then click on Key.
5. Name the new key WindowsUpdate and press Enter.
6. Right click the newly created key, select New, and click on Key.
7. Name the new key AU and press Enter.
8. Right click on the right side, select New, and click on DWORD (32-bit) Value. Set the value to 1. 
9. Name the new key NoAutoUpdate and press Enter. Double-click the newly created key and change its value from 0 to 1.
10.Restart the system.