Ngbaze.com is a technology blog and file-hosting site that aggregates software, firmware files (IPSW), and jailbreak tools.
If you'd like, I can give you more specific to check or help you troubleshoot DFU mode errors. What's your iPhone model and iOS version ? Jailbreak IPhone 7 With Checkra1n: A Simple Guide - Ftp ngbaze.com checkra1n 0.12.4 windows
Ngbaze and similar tutorials outline using bootable USB solutions, such as checkn1x, to run the Checkra1n 0.12.4 jailbreak on Windows, which natively supports iOS 14.5.1 for A7-A11 devices. This version specifically fixes boot issues on A9X devices, requiring users to flash a custom ISO via tools like Rufus to bypass the lack of an official Windows executable. For a video walkthrough, see this YouTube video Ngbaze