Large system cache
Lets the file system cache grow larger (a server-oriented setting).
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\Session Manager\Memory Management\LargeSystemCache = 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
Can help heavy file-copy or server workloads.
Trade-offs
Can leave less memory for games and apps. Not recommended for gaming PCs.
Evidence
Limited evidence means: popular, but gains are rarely 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.
Gains from this tweak are rarely measurable on modern Windows, so it is never recommended or applied in bulk. If you try it, measure before and after with the Benchmark and keep it only if it helps.
Is it in a pack?
No. Packs only contain Safe tweaks, and this one is labelled Experimental.
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.
More in Memory & storage
- Turn off memory compressionStops Windows compressing memory pages instead of paging them to disk.ExperimentalPerformance
- Turn off PrefetchDisables application and boot prefetching.CautionPerformance
- Stop NTFS last-access updatesStops NTFS from updating the 'last accessed' time on every file read.SafePerformanceRecommended
- Make sure TRIM is onEnsures Windows sends TRIM to SSDs (the default).SafeReliabilityRecommended
- Stop creating 8.3 short file namesNew files on NTFS no longer get legacy DOS short names.SafePerformance
- More NTFS memory for cachingRaises NTFS paged-pool limits for file system metadata.CautionPerformance