Worked on stabilizing Windows builds for the tianocore/edk2 repository by addressing build failures caused by non-ASCII characters in core packages. Applied targeted patches across MdePkg, EmbeddedPkg, and ArmPkg, replacing non-ASCII with ASCII characters to resolve MSVC C4819 warnings and ensure clean builds under strict compiler settings. This effort improved CI reliability and enhanced cross-package portability for Windows environments, particularly for non-English locales. Demonstrated expertise in C programming, debugging, and firmware development, with a focus on system programming. The work emphasized cross-component code quality and contributed to more robust and release-ready Windows build processes within the project.