• Secure Your Windows Devices
• How to Turn on Windows Automatic Update for Windows 7
• How to Turn on Windows Automatic Update for Windows 10
• How to Turn on Microsoft Security Essentials (Anti-virus)
• How to Turn on Windows Defender for Windows 10
• How to Turn on Windows Firewall

1. Select the Start  button, then select Settings  > Update & security  > Windows Update, and then select Change active hours.

2. Choose the start time and end time for active hours, and then select Save.

^{Sources: Microsoft}