Turn off transparency effects

Disables the acrylic/mica blur in the taskbar, Start and Settings.

SafePerformanceRecommendedModerate evidence

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What it changes

HKCU\Software\Microsoft\Windows\CurrentVersion\Themes\Personalize\EnableTransparency = 0

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

Why it helps

Saves a little GPU compositor work; noticeable mainly on integrated graphics.

Trade-offs

Taskbar and Start look flat and opaque.

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?

Yes. It's in the Gaming performance pack, so that pack and Optimize everything include it. You can still untick it in the review screen.

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.

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.

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