OPREKIN is a well-known name in the "custom OS" scene—specifically within Russian and international tech forums. Their Windows 11 Lite is a modified ISO image of Microsoft's operating system. The developer uses tools like NTLite and MSMG Toolkit to remove, disable, or tweak components that the average user cannot touch in the official version.

This gives you 90% of the performance of OPREKIN Lite without losing security or updates.