Real performance tests by enthusiasts (see Tech YES City or PhilsComputerLab on YouTube) show that properly maintained Windows 10 or 11 LTSC (Long Term Servicing Channel) is faster and more secure than any “Lite” Windows 8.1.
When downloading and installing Windows 8.1 Pro x64 Lite PT-BR ISO, be cautious and ensure that you're obtaining it from a trusted source to avoid potential malware or viruses. Additionally, keep in mind that:
If you ignore all warnings and still seek such files, here are red flags that differentiate malware from potentially safer community builds (though none are truly safe):