How does Windows implement write-back caching for disk I O?

[ProfRon]

Windows grabs your data writes and stashes them in its memory cache first. It pretends the job's done quick. You keep typing or saving without waiting. Later, it flushes that bundle to the disk when things calm down. I remember tweaking that on my old setup once. It speeds up your flow big time. But if power cuts out, poof, some changes vanish. Windows juggles this with timers and checks. You can tweak it in the registry if you're bold. I wouldn't unless you know the ropes. It batches writes smartly too. Think of it like piling laundry before the wash. Your apps feel snappier that way. I tested it with big files yesterday. Surprised how much faster transfers got.

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