While you may find many sites promising a version, there is currently no official standalone portable .exe version of checkra1n for Windows. The official checkra1n team has historically supported only macOS and Linux, with work for a native Windows version officially listed as "ongoing" but not yet released as a direct executable.
If you are specifically looking for version , here is what that release officially brought to the table: Supported Devices iPhone 5s through iPhone X (A7–A11 chips). Firmware Support iOS 12.0 up to iOS 14.8.1. A11 Warning
To use checkra1n portably on your Windows machine, follow these steps:
: This is the most popular choice. It is a tiny ISO (around 50MB) that contains only the essential components to run checkra1n. You flash it to a USB drive and boot your PC from it.
Since checkra1n doesn't run on Windows, the community developed "live" Linux environments that are lightweight and strictly built to run checkra1n. These are effectively portable because they run entirely from a USB stick without installing anything on your hard drive.