---
title: "DisableStartupSound 1: turning off the Windows startup sound"
description: "DisableStartupSound set to 1 stops Windows from playing its sound when it starts. What the tweak changes, when it helps, when it hurts and how to undo it."
url: https://frozentweaks.com/tweaks/disable-startup-sound
author: Frost LIVE, Founder of Frozen Tweaks
published: 2026-10-08
updated: 2026-10-08
category: "Windows"
source: Frozen Tweaks (https://frozentweaks.com)
---

# DisableStartupSound 1: turning off the Windows startup sound

**Short answer:** DisableStartupSound set to 1 stops Windows from playing its sound when it starts. In the registry it sets DisableStartupSound to 1 under HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\LogonUI\BootAnimation.

## In the app

- Switch: Disable the Startup Sound (Windows, Free, Standard)
- Undo: Yes. Switching it off puts back exactly what was there before, value for value.
- Catalog row: https://frozentweaks.com/tweaks#t-1162

## What it does

DisableStartupSound set to 1 stops Windows from playing its sound when it starts.

In the app the switch is called "Disable the Startup Sound", described there as: Turns off the sound Windows plays when it starts.

## When it helps

- A silent boot.

## When it hurts

- Nothing.

## What it writes

Read from the app's source. "Switching it off" is what the app writes when you turn the tweak off again.

Registry values:

| Key | Value | With the tweak | Switching it off |
| --- | --- | --- | --- |
| `HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\LogonUI\BootAnimation` | `DisableStartupSound` | `1` | Your previous value (saved before the change, or deleted if there was none). Windows default: 0 |

Source: Tweaks/pack_extra.hpp in the app's source, app 2.0.0, checked 2026-10-08.

## The same change by hand

Run in a Command Prompt opened as administrator. Make a restore point first.

```bat
reg add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\LogonUI\BootAnimation" /v "DisableStartupSound" /t REG_DWORD /d 1 /f
```

Put it back:

```bat
reg add "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\LogonUI\BootAnimation" /v "DisableStartupSound" /t REG_DWORD /d 0 /f
```

See what it is set to now:

```bat
reg query "HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\LogonUI\BootAnimation" /v "DisableStartupSound"
```

## How to undo it

Switch the tweak off in Frozen Tweaks. The app saved what each value was before the change and writes exactly that back, or removes the value if it did not exist.

## Verdict

Cosmetic.

## Questions

### What does the "Disable the Startup Sound" tweak change in Windows?

In the registry it sets DisableStartupSound to 1 under HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Authentication\LogonUI\BootAnimation.

### What is the default value of DisableStartupSound?

The Windows default of DisableStartupSound is 0. Frozen Tweaks sets it to 1, and switching the tweak off puts back the value you had before.

### Is "Disable the Startup Sound" safe to switch on?

Cosmetic. The main cost: Nothing.

### How do I undo it?

Switch the tweak off in Frozen Tweaks. Switching it off puts back exactly what was there before, value for value.

### Is "Disable the Startup Sound" free in Frozen Tweaks?

Yes. It is one of the free tweaks, with no time limit.

## Related guides

- [Windows 11 Gaming Optimization: What Still Works in 2026](https://frozentweaks.com/guides/windows-11-gaming-optimization)
- [How to Increase FPS on PC: The Complete 2026 Guide](https://frozentweaks.com/guides/how-to-increase-fps-on-pc)

## More tweak explainers

- [Folder type discovery](https://frozentweaks.com/tweaks/disable-folder-type-discovery)
- [Folder windows in a separate process](https://frozentweaks.com/tweaks/separate-process-for-folder-windows)
- [Shutdown timeouts](https://frozentweaks.com/tweaks/faster-shutdown)

---
Written by Frost LIVE, founder of Frozen Tweaks. Canonical version: https://frozentweaks.com/tweaks/disable-startup-sound