For businesses: deploy these ISOs. Use LTSC or invest in new hardware.

Common places that distribute such ISOs:

The Windows 10 Lite Edition Enterprise x64 21H1 June 2021 represents a powerful solution for organizations looking to optimize their existing hardware for modern business needs. By balancing performance, efficiency, and security, it offers a viable pathway for businesses to update their systems without the immediate need for hardware replacements.

This ISO is almost certainly .

: Although designed for lower-end hardware, there are still minimum system requirements that must be met. Very old systems may not be supported.