This is the WSL (Windows Subsystem for Linux) Release. Make sure you are selecting the right one and refer to INSTALLATION.md Note: Download all .zip.001-013. select all of them at once and right click and under 7-Zip you will find extract here, Note: This is around 40GB of data, make sure you have enough space and clear the files after each step:

Ex: after extracting the split zips, delete them, and after importing bun-os.tar, delete it.