Cockos REAPER 6.42 (x64) + Portable | 15/19.7 Mb
REAPER is a powerful but sensible Windows application that lets you record, arrange, edit, and render multi-track waveform audio. It provides an extensive set of features, but is a very small and lightweight application (the installer is less than 1 megabyte, and includes many effects and a sample project). REAPER supports ASIO, Kernel Streaming, WaveOut, and DirectSound for playback and recording. It reads WAV, OGG, and MP3 files, and records WAV files.

Windows 10 21H2 v10.0.19044.1288 (x86/x64) Consumer/Business MSDN November 2021 | 3.9/5.5/3.8/5.4 Gb
Windows 10 LTSC 2021 builds on Windows 10, version 21H2 (released November 2021) adding premium features designed to address the needs of large and mid-size organizations (including large academic institutions), such as advanced protection against modern security threats, full flexibility of OS deployment, updating and support options; as well as comprehensive device and app management and control capabilities.

Windows 10 Enterprise LTSC 21H2 v10.0.19044.1288 (x86/x64) November MSDN 2021 | 3.21/4.56 Gb
Officially, LTSC(LTSB) is a specialized edition of Windows 10 Enterprise that promises the longest intervals between feature upgrades of any version of the operating system.