How to uninstall pgAdmin 4 on Windows

pgAdmin 4 keeps your registered servers, preferences and saved queries in its own data folder, not in the databases it connects to, so uninstalling it never touches a PostgreSQL server. Before removing the app, export your server list with Tools › Import/Export Servers so you can bring it back later; the export never includes passwords, so note those separately. Import/Export Servers This guide covers pgAdmin 4 installed per-user from the PostgreSQL.pgAdmin winget package.

Quit pgAdmin 4 first

Close the pgAdmin 4 window. The desktop app runs its own window process, pgAdmin4.exe, plus a bundled Python backend, python.exe, from its program folder. Check Task Manager (Ctrl+Shift+Esc) that neither is still listed under pgAdmin 4 before you uninstall.

Remove the app with its own uninstaller

Go to Settings › Apps › Installed apps, find pgAdmin 4, and choose Uninstall, or run:

winget uninstall --id PostgreSQL.pgAdmin

Where the data lives

Location	What it holds	What to do
`%LOCALAPPDATA%\Programs\pgAdmin 4`	Program files, including the bundled Python	The uninstaller removes it
`%APPDATA%\pgAdmin`	The settings database with your registered servers and preferences, and the log `pgadmin4.log` (pgAdmin FAQ)	Export your servers first; keep it if you plan to reinstall, remove it for a clean start
`%APPDATA%\pgadmin4`	Data of the desktop window	Safe to remove once pgAdmin is gone

Check the result

Run these read-only commands after the uninstall finishes:

Get-Process pgAdmin4 -ErrorAction SilentlyContinue
winget list --id PostgreSQL.pgAdmin
Test-Path "$env:LOCALAPPDATA\Programs\pgAdmin 4"
Test-Path "$env:APPDATA\pgAdmin"
Test-Path "$env:APPDATA\pgadmin4"

No output from Get-Process only means this query observed no matching process; a suppressed error leaves the running state unknown. A listed process means a window is still open.
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; True means files remain there.
Test-Path "$env:APPDATA\pgAdmin" returning True means your settings database is still there, which is expected unless you removed it yourself.
Test-Path "$env:APPDATA\pgadmin4" returning True means the desktop window's data is still there; remove it yourself if you do not plan to reinstall.

If you installed it with winget

winget uninstall runs the same Inno Setup uninstaller Settings › Apps uses and removes the same program files; it does not touch %APPDATA%\pgAdmin or %APPDATA%\pgadmin4 on its own.

What Mole lists

For pgAdmin 4 installed per-user from winget:

The program folder goes with the app row. The Start Menu folder and a row grouping Windows' own records of when you opened the program are selected by default.
%APPDATA%\pgAdmin and %APPDATA%\pgadmin4 are listed but not selected, since the first holds your servers and preferences.
Databases and PostgreSQL servers are never part of this list.

What this test covered

Tested on 2026-09-28 with pgAdmin 4 9.18 installed through winget, per-user scope. The test installed it from an elevated session, so its uninstaller asked for administrator access; a normal per-user install does not. Every listed row was ticked and removed in this test. Not verified: registered servers, saved passwords, or the Import/Export Servers round trip.