To do a clean reinstall on Windows, quit Fluxer, uninstall it, delete the folders it leaves behind and install it again. You're signed out of every account on this PC, and your messages, communities and account settings come back when you sign in. Check what you need before you start, such as your password and your second factor.
How do I reinstall Fluxer on Windows?
- Fluxer keeps running in the tray when you close its window. Right-click the Fluxer icon in the system tray and choose "Quit Fluxer". If you don't see the Fluxer icon there, click the arrow next to the tray to show hidden icons. If Fluxer has no tray icon, open Task Manager with Ctrl+Shift+Esc and end every "Fluxer" process.
- Open "Settings" > "Apps" > "Installed apps" and uninstall "Fluxer". On Windows 10, it's "Settings" > "Apps" > "Apps & features". If there's a second "Fluxer" entry from an older install, uninstall it too, and if an entry disappears or shows an error, go on to step 3. Leave "Fluxer Canary" installed unless you're reinstalling Canary.
- Press Win+R, type
%LocalAppData%, press Enter and deletefluxer_desktopif it's still there. If you first installed Fluxer in early 2026, deletefluxer_apptoo. - Press Win+R, type
%AppData%, press Enter and delete thefluxerfolder. - Download the installer from the download page and run it.
A reinstall turns on "Launch Fluxer at login", so Fluxer opens when you sign in to Windows. If you don't want that, you can turn it off in "Windows app" settings.
How do I reinstall Fluxer Canary on Windows?
For Canary, delete fluxer_desktop_canary in %LocalAppData% and fluxercanary in %AppData%, and fluxer_app if you installed Canary in early 2026.
What if Windows says a file is in use?
If Windows says a file is in use, end every "Fluxer" process in Task Manager and try again. If that doesn't help, restart your PC and delete the folder before you open Fluxer.
How do I remove an old Fluxer entry from "Installed apps"?
If an old "Fluxer" entry stays in "Installed apps" and shows an error when you click it, open Command Prompt and run this command to remove the entry.
reg delete "HKCU\Software\Microsoft\Windows\CurrentVersion\Uninstall\fluxer_app" /f
You don't need a registry cleaner, because a reinstall writes Fluxer's entries again.
How do I remove the portable version?
If you use the portable version, your data is in the data folder next to Fluxer.exe. To remove it, quit Fluxer and delete the whole folder you unzipped it to.
Our article on clean reinstalls says what a clean reinstall removes and where to find the logs, along with the steps for the web app and the mobile apps.