Is "USB/HID Low-Latency Power Settings" safe to switch on?

Recommended on a desktop. It removes a real, if occasional, source of input hiccups. The main cost: USB devices draw a little more power at idle. On a desktop that is irrelevant; on a laptop it shortens battery life slightly.

Is "USB/HID Low-Latency Power Settings" free in Frozen Tweaks?

It is part of Frozen Pro and Elite. You can also make the change by hand with the values on this page.

Disable USB selective suspend: fixing a mouse or keyboard that lags after idling

Frost LIVEPowerProUndo: YesUpdated Oct 8, 2026View as Markdown

Short answer

Updated Oct 8, 2026

USB selective suspend lets Windows put a single USB port to sleep when the device on it is idle. Waking it takes a moment, which shows as a mouse, keyboard or headset that responds late after a pause. This tweak turns the setting off in the active power plan. It runs powercfg /SETACVALUEINDEX SCHEME_CURRENT SUB_USB 48e6b7a6-50f5-4782-a5d4-53bb8f07e226 0 and 2 more commands.

In the app

USB/HID Low-Latency Power SettingsPRO

Command

powercfg /SETACVALUEINDEX SCHEME_CURRENT SUB_USB 48e6b7a6-50f5-4782-a5d4-53bb8f07e226 1powercfg /SETACVALUEINDEX SCHEME_CURRENT SUB_USB 48e6b7a6-50f5-4782-a5d4-53bb8f07e226 0

What the switch writes. Your current value may differ. 2 more changes below.

What it does

In the app the switch is called "USB/HID Low-Latency Power Settings", described there as: Disables USB selective suspend to prevent mouse/keyboard sleep-induced lag.

When it helps, and when it hurts

When it helps

Input devices and USB audio that stutter or drop out for an instant after not being used.

When it hurts

USB devices draw a little more power at idle. On a desktop that is irrelevant; on a laptop it shortens battery life slightly.

What it writes

Exactly what the switch changes, read from the app's source. Switching it off is what the app writes when you turn the tweak off again.

With the tweak · CMD

powercfg /SETACVALUEINDEX SCHEME_CURRENT SUB_USB 48e6b7a6-50f5-4782-a5d4-53bb8f07e226 0
powercfg /SETDCVALUEINDEX SCHEME_CURRENT SUB_USB 48e6b7a6-50f5-4782-a5d4-53bb8f07e226 0
powercfg /S SCHEME_CURRENT

Switching it off · CMD

powercfg /SETACVALUEINDEX SCHEME_CURRENT SUB_USB 48e6b7a6-50f5-4782-a5d4-53bb8f07e226 1
powercfg /SETDCVALUEINDEX SCHEME_CURRENT SUB_USB 48e6b7a6-50f5-4782-a5d4-53bb8f07e226 1
powercfg /S SCHEME_CURRENT

From the app's source (usb_lowlatency.hpp), app 2.0.0, checked Oct 8, 2026.

How to undo it

In the app: Yes

Switching it off sets a standard Windows value, which may not be exactly how you had it.

Switch the tweak off in Frozen Tweaks. It runs the commands shown under "Switching it off".

Changing several settings at once? The app's Make a restore point button, on every plan, makes a Windows restore point before you start.

Verdict

Recommended on a desktop. It removes a real, if occasional, source of input hiccups.

Questions

What does the "USB/HID Low-Latency Power Settings" tweak change in Windows?: It runs powercfg /SETACVALUEINDEX SCHEME_CURRENT SUB_USB 48e6b7a6-50f5-4782-a5d4-53bb8f07e226 0 and 2 more commands. The full list is in the table on this page, read from the app's source.
Is "USB/HID Low-Latency Power Settings" safe to switch on?: Recommended on a desktop. It removes a real, if occasional, source of input hiccups. The main cost: USB devices draw a little more power at idle. On a desktop that is irrelevant; on a laptop it shortens battery life slightly.
How do I undo it?: Switch the tweak off in Frozen Tweaks. Switching it off sets a standard Windows value, which may not be exactly how you had it.
Is "USB/HID Low-Latency Power Settings" free in Frozen Tweaks?: It is part of Frozen Pro and Elite. You can also make the change by hand with the values on this page.

In the app