If you are on SteamOS make sure you are in `Desktop Mode` before you begin.
**Do not use the the Rowan Skye Method**
We do not recommend to blindly install the Cooker without reading this guide and just hope for the best aka the `Rowan Skye Method`. This is only recommended for chaotic blue dragonic wolfkin testers living on the edge.
- Make a full back up or partial backups of the retrodeck folder normally under `~/retrodeck` or sdcard/other drive.
**Notes on the retrodeck folder back up:**
Generally, very few things would target the roms folder, but the other folders could be targeted for various scripts. Our recommendation would be to back up the full `/retrodeck` folder, but as a tester you can decide how much you want to risk.
Disclamer: The RetroDECK Team also had never had any major data loss so far and we do cooker updates almost daily.
-`flatpak remove net.retrodeck.retrodeck` and press (y) yes to remove RetroDECK. If you have more then one version installed for some reason choose to remove all versions.
Check for the message `"In version 0.8.0b, the following changes were made that required config file updates/reset or other changes to the filesystem:"` in the terminal. This is a sign that tell you the post update migration is running, this is crucial for RetroDECK's upgrade to fully happen.
**Start RetroDECK:**
After the installation is complete type: `flatpak run --command=sh net.retrodeck.retrodeck` followed by `retrodeck`.
Under **NO** circumstances press the `Full Wipe and Fresh Install` button. That is **NOT** to be confused with Configurators `Reset RetroDECK` option, but this a `Nuke Everything` option. It will remove all of RetroDECK including all ROMS/BIOS/Downloaded Media and everything else you have forever.