Windows 121 - Iso File Install

Instead of launching a brand-new versioned operating system, Microsoft poured its resources into deep system-level AI integration via Copilot+ and modular UI changes directly inside Windows 11 updates.

Microsoft transitioned to a "Windows as a Service" model with Windows 10 and continued this with Windows 11. While rumors about Windows 12 are frequent, a version numbered 121 does not fit into the standard naming convention. If you have found a Windows 121 ISO file, it is likely a modified version of Windows 11 23H2 or 24H2. These custom ISOs often remove telemetry, pre-installed bloatware, and hardware restrictions like TPM 2.0 requirements. Risks of Using Unofficial ISO Files windows 121 iso file install

With your bootable USB ready, you must tell your computer to boot from it rather than the existing hard drive. Instead of launching a brand-new versioned operating system,