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Stop creating 8.3 short file names

New files on NTFS no longer get legacy DOS short names.

SafePerformanceModerate evidenceAdminRestart

Applying it needs Nexus Pro. Every plan can read it here and undo it in Restore Center. Compare plans

What it changes

HKLM\SYSTEM\CurrentControlSet\Control\FileSystem\NtfsDisable8dot3NameCreation = 1

Before anything is written, the review screen shows this setting's current value on your PC next to the new one.

Why it helps

Faster file creation in folders with many files.

Trade-offs

Very old 16-bit tools that need short names may fail.

Evidence

Moderate evidenceExpected impact:Small

Moderate evidence means: helps in specific situations. Expected impact is small (1 of 3): how much it can matter when this is actually the bottleneck on your PC, not a promised gain.

Is it in a pack?

No. It isn't hand-picked as recommended, so you apply it on its own, after reading the trade-offs.

How to undo

Switch the tweak off in Nexus, or open Restore Center and restore this change (or choose Undo last change). Nexus writes back the original value it recorded before applying, not a generic default, then reads it back to confirm.

Like applying it, undoing it takes full effect after you restart.

Apply it safely with Nexus

Preview the exact change, apply it with its original value recorded, and undo it in one click if you change your mind.