How to uninstall SignalRGB on Windows

SignalRGB keeps your lighting layouts, effects and device settings in its data folders under %LOCALAPPDATA%\WhirlwindFX and %APPDATA%\WhirlwindFX. Copy them first if you might reinstall. Its uninstaller removes the app but, in this test, left behind a background service and a hidden Store package it installs alongside, so plan to check for both afterwards. This guide covers SignalRGB installed per-user from the WhirlwindFX.SignalRgb winget package.

Quit SignalRGB first

SignalRGB adds a startup entry and sits in the tray. Right-click its tray icon and exit, or turn the entry off in Settings › Apps › Startup, then check Task Manager (Ctrl+Shift+Esc) for any SignalRgb process still listed. The SignalRgb.Service Windows service keeps running on its own; it shows in the Services tab of Task Manager, not in Settings › Apps › Startup.

Remove the app with its own uninstaller

Go to Settings › Apps › Installed apps, find SignalRGB, and choose Uninstall, or run:

winget uninstall --id WhirlwindFX.SignalRgb

Remove what the uninstaller leaves running

After the uninstall, open Services (services.msc) as an administrator, stop SignalRgb.Service, and set its startup type to Disabled. Its program lives in %LOCALAPPDATA%\WhirlwindFX\SignalRgb\service, and that folder cannot be moved to the Recycle Bin while the service holds it.

SignalRGB also installs a hidden Store package with the same name, which Settings does not show. If the check below lists it, you can remove it for your account in PowerShell with Get-AppxPackage *SignalRgb* | Remove-AppxPackage.

Where the data lives

Location	What it holds	What to do
`%LOCALAPPDATA%\WhirlwindFX\SignalRgb`	Program files, including the service's program	Files remain here while the service runs from it; remove what is left once the service is stopped
SignalRGB's data folders under `%LOCALAPPDATA%\WhirlwindFX` and `%APPDATA%\WhirlwindFX`	Layouts, effects, device settings, caches and logs	Back up if you might reinstall; the caches and logs are safe to remove
`%LOCALAPPDATA%\WhirlwindFX` and `%APPDATA%\WhirlwindFX`	Vendor parent folders	Empty once the folders above are gone; remove them yourself
`HKCU\Software\WhirlwindFX\SignalRgb`	Settings	The uninstaller may write it back while it runs; remove it afterwards if it is still there
`HKCU\Software\Classes\signalrgb`	The `signalrgb://` link registration	Safe to remove once the app is gone

Check the result

Run these read-only commands after the uninstall finishes:

Get-Process SignalRgb* -ErrorAction SilentlyContinue
winget list --id WhirlwindFX.SignalRgb
Get-Service SignalRgb.Service -ErrorAction SilentlyContinue
Get-AppxPackage *SignalRgb*
Test-Path "$env:LOCALAPPDATA\WhirlwindFX"
Test-Path HKCU:\Software\WhirlwindFX\SignalRgb

No output from Get-Process only means this query observed no matching process; a suppressed error leaves the running state unknown.
A completed winget list query with no match means the package record is gone; a matching row means the uninstall did not finish.
A row from Get-Service means the service is still registered; check that it is stopped and disabled. No matching output from a confirmed successful query means it is gone.
Output from Get-AppxPackage means the hidden package is still installed for your account.
Test-Path "$env:LOCALAPPDATA\WhirlwindFX" returning True means program files or data remain there.
The last Test-Path returning True means the settings key is still there.

If you installed it with winget

winget uninstall runs the same uninstaller Settings › Apps uses and leaves the same service and hidden package behind.

Account and subscription

Uninstalling does not cancel a SignalRGB Pro subscription or delete your account.

What Mole lists

For SignalRGB installed per-user from winget:

The program folder goes with the app row, selected by default.
The shortcuts, the signalrgb:// link and the sign-in entry are selected by default; the link and the sign-in entry are backed up to a .reg file before removal.
The caches and logs are listed on their own and selected.
The data folders under %LOCALAPPDATA%\WhirlwindFX and %APPDATA%\WhirlwindFX are listed but not selected.
When the uninstaller writes HKCU\Software\WhirlwindFX\SignalRgb back after the review, the result shows it in a separate section, not selected, with its own Move to Recycle Bin link.
The SignalRgb.Service service and the hidden Store package are not removed. The empty WhirlwindFX parent folders and a few generic Firebase cache folders, whose names do not say which app wrote them, are not listed.

What this test covered

Tested on 2026-09-27 with SignalRGB installed through winget on an ARM64 virtual machine, with no lighting devices attached. Every listed row was ticked and removed; the service and the hidden package stayed. Not verified: real RGB hardware, a signed-in account, and SignalRGB Pro.