Third-party ISOs found on forums or file-sharing sites are modified by anonymous developers. There is no guarantee that the ISO hasn't been bundled with deeply embedded malware, keyloggers, or crypto-miners.

回到最初的搜索，“Windows 10 Lite Version 21H2/21H1 Build 1904x.1387”并不是一个你应该去寻找和安装的版本。追求轻量、流畅系统的根本目的，是为了让电脑更好地服务于你，而不是让你陷入数据丢失或系统瘫痪的风险。因此，基于安全考虑，结论非常明确：

Because Windows Update is frequently broken or disabled in Lite builds, your system will not receive critical patches against zero-day exploits. Furthermore, if Windows Defender is removed, your system is entirely exposed unless you manage third-party security.

Developers running multiple VMs use Lite versions because they allow assigning minimal resource overhead to each instance. Critical Security and Stability Risks