Worked on stabilizing cross-platform test execution for the KratosMultiphysics/Kratos repository by addressing Windows compatibility issues in the Solid Mechanics Test Suite. Focused on C++ development and build systems, the work involved resolving compilation errors by refactoring test infrastructure, removing unused includes, and aligning class naming with suite conventions to improve maintainability. An explicit include for solid_mechanics_fast_suite.h was added to ensure reliable test compilation on Windows, which reduced sporadic CI failures and provided faster feedback for contributors. Emphasized robust testing practices and cross-platform support, resulting in a more dependable continuous integration process for the Kratos codebase.