Windows 10 Build 19043.1387 (21H1)

The version and build number you're referencing, and 19044.1387 (21H2) , specifically corresponds to a custom "Lite" release from the well-known modder Ghost Spectre .

Bloatware Removal

: Essential apps like the Microsoft Store, Windows Defender, and Edge are often removed or made optional to save RAM and disk space.

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Windows 10 "Lite" version 21H1 Build 19043.1387

The story of is not a tale of an official Microsoft product, but rather a journey through the "custom ISO" underground. While Microsoft never released a "Lite" edition, the community took the stable May 2021 Update (21H1) and transformed it into a streamlined powerhouse for low-end hardware. 1. The Foundation: Build 19043.1387

Cons

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: Popular "Lite" versions based on these builds (such as those by GHOST Spectre