Preventing your computer from automatically updating requires a few steps.

1. Turn off automatic downloads and updates:Head to the system settings, and turn off automatic downloads and updates.
2. Schedule updates: If updates are turned on, you can schedule them at times when you are away from the computer.
3. Disable Windows Update service: This will stop Windows from automatically updating, however you’ll need to manually update your computer to get security updates.
4. Install custom anti-virus software: This will help prevent malicious content from being downloaded and installed on your computer.