performance

Stop defragmenting your SSD — and the one maintenance you should run anyway

'Defrag' from 2005 folklore does active harm to flash wear budgets. What Windows already runs for SSDs, and where tweaking ends vs snake oil begins.

ProofTune Project··4 min read
Performance illustration Performance

What Windows already does right

dfrgui knows the media. On SSDs it runs TRIM reissue (free-block hint to the controller) on the maintenance task cadence set by Storage Sense/Optimize Drives defaults — no fragmentation pass, no rewrite churn. You can verify: Optimize Drives reports “Solid state drive” and Scheduled optimization On for stock installs.

The myth menagerie to decline

  • “Quarterly defrag keeps an SSD fast”: flash has no seek penalty; the writes you'd cause cost endurance and return nothing.
  • “Move the pagefile off the SSD”: modern rebuttal — pagefile on NVMe is a feature, not wear hazard, at client workloads; the firmware will outlive your interest in the conversation.
  • “Induce idle garbage collection manually”: the controller's firmware runs this on its own CG policy; user-triggered tricks degrade to noise.

Tuning's version of humility: the OS tracks hardware better than folklore. Where a per-user tool adds value is the layers above — startup, visual latency, cleanup — not the NAND.

ProofTune ProjectEngineering notes — every claim here names the bytes a real tool touches. Verify first, install second.
ProofTune logo

See these exact settings inside the real tool

The browser replica runs the same strings and states as the installed app — click around before you ever install anything.