How to uninstall Bambu Studio on Windows

Your .3mf projects stay wherever you saved them, and removing Bambu Studio does not touch them. What lives in the app's own folders is your custom printer, filament and process presets and your local settings, so export or copy those first if you made any. This guide covers Bambu Studio installed machine-wide from the Bambulab.Bambustudio winget package, which puts it in %ProgramFiles%\Bambu Studio.

Quit Bambu Studio first

Save your projects, finish or cancel any slicing or print upload, and close the window. Check Task Manager (Ctrl+Shift+Esc) for any bambu-studio process still listed. It adds no startup entry.

Remove the app with its own uninstaller

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

winget uninstall --id Bambulab.Bambustudio

Windows asks for administrator access, since the app is installed for all users.

Where the data lives

Location	What it holds	What to do
`%ProgramFiles%\Bambu Studio`	Program files	The uninstaller removes it
`%APPDATA%\BambuStudio`	User presets, settings, the signed-in session and a small `Cache`	Back up if you made custom presets; remove it for a clean start
`%LOCALAPPDATA%\BambuStudio`	Local working data	Safe to remove after the app is gone
`HKLM\SOFTWARE\Bambulab`	A machine-wide key the installer writes	Left by the uninstaller; harmless

Check the result

Run these read-only commands after the uninstall finishes:

Get-Process | Where-Object { $_.Path -like "*Bambu Studio*" }
winget list --id Bambulab.Bambustudio
Test-Path "$env:ProgramFiles\Bambu Studio"
Test-Path "$env:APPDATA\BambuStudio"
Test-Path "$env:LOCALAPPDATA\BambuStudio"

If the first command succeeds without suppressed errors, no output means Bambu Studio is not running.
A completed winget list query with no match means the package record is gone; a matching row means the uninstall did not finish.
The first Test-Path returning False means the program folder is gone.
The other two returning True mean your presets, settings and working data are still there, which is expected unless you removed them yourself.

If you installed it with winget

winget uninstall runs the same uninstaller Settings › Apps uses and removes the same program files; it does not touch the two BambuStudio data folders.

Account

Uninstalling does not sign you out of your Bambu Lab account or remove your printers from it. Presets synced to your account come back when you sign in again.

What Mole lists

For Bambu Studio installed machine-wide from winget:

The program folder goes with the app row, together with a row grouping Windows' own records of when you opened the program, selected by default.
%APPDATA%\BambuStudio and %LOCALAPPDATA%\BambuStudio are listed but not selected. The Cache folder inside %APPDATA%\BambuStudio is listed on its own and selected.
The Start Menu folder and the public desktop shortcut are selected by default.
HKLM\SOFTWARE\Bambulab is not listed.

What this test covered

Tested on 2026-09-28 with Bambu Studio 02.08.02.61 installed through winget, machine scope, on an ARM64 virtual machine. Its NSIS uninstaller ran silently. Every listed row was ticked and removed in this test. Not verified: a signed-in account, a connected printer and custom presets.