问题拆分
A restore failure is more serious than a launch failure because it can leave saves, loaders, or configuration files in an unknown state.
记录预期结果和第一次失败的位置，并确保每次修改都可以撤销。
实践步骤
Back up saves separately, note original file hashes or timestamps where useful, test one mashup, and verify the uninstall result before installing another.
使用原创占位素材和离线测试环境，开始前先备份。
验证与记录
Compare the original and restored directory, launch the unmodified game, load a backup save, and document any file that remains changed.
记录版本、步骤、结果和恢复方式，形成短小的现场笔记。