noun
reinitialization; reset to initial settings
Computing term for resetting a device, software, or system to its original factory or default state. Often used in technical contexts.
See also: 初期設定 (しょきせってい)
スマートフォンの再初期設定を行うと、すべてのデータが消去されます。
Performing a reinitialization of the smartphone will erase all data.
ルーターの再初期設定には、背面のリセットボタンを長押ししてください。
To reset the router to its initial settings, press and hold the reset button on the back.
初期設定 means 'initial settings' or 'default configuration', while 再初期設定 specifically refers to the process of restoring those initial settings after they have been changed.
リセット is a more general and common term for 'reset', while 再初期設定 is a technical term emphasizing restoration to the original factory state, often used in manuals and formal documentation.
Compound of 再 (re-) + 初期設定 (initial settings). A straightforward technical term formed from existing Sino-Japanese elements.