Many "Lite" versions disable Windows Defender , the firewall, and User Account Control (UAC) to save resources. This leaves your system completely exposed to malware.
If you need a lightweight OS, consider these verified options: Why you should NEVER use "Gaming ISOs" Many "Lite" versions disable Windows Defender , the
They often remove pre-installed apps like the Microsoft Store, Xbox, and telemetry features to lower RAM usage. Many "Lite" versions disable Windows Defender
These builds often disable Windows Update permanently. You won't receive critical security patches, and trying to manually update can cause the system to crash. Many "Lite" versions disable Windows Defender , the
Custom Windows builds are typically modified to use fewer resources, which can be tempting for low-end hardware or gaming: