noun
defragmentation
Computing term for reorganizing fragmented data on a disk to improve performance. Often abbreviated as デフラグ.
ハードディスクのデフラグメンテーションを定期的に実行すると、パソコンの動作が速くなります。
Running defragmentation on your hard disk regularly will make your PC run faster.
Common abbreviation of デフラグメンテーション, used more frequently in casual or spoken contexts.
Borrowed from English 'defragmentation'.