Block OneDrive file sync
Applies the policy that prevents OneDrive syncing files.
Applying it needs Nexus Standard or Pro. Every plan can read it here and undo it in Restore Center. Compare plans
What it changes
HKLM\SOFTWARE\Policies\Microsoft\Windows\OneDrive\DisableFileSyncNGSC = 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
OneDrive can't sync in the background.
Trade-offs
Files stop syncing to OneDrive; online-only files can't be opened.
Evidence
Strong evidence means: documented by microsoft or consistently measurable. 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. Packs only contain Safe tweaks, and this one is labelled Caution.
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.