Before doing this, make sure that you setup Chrome to be your default browser or the updater will fail (Firefox will be supported-ish in a future release which you will get automatically).
- Open ATLauncher to backup your configs
- Close down ATLauncher
- In Explorer, go to
%APPDATA%\ATLauncher\instances, delete your NowWhat folder, and then re-make it - Put packwiz-installer-bootstrap.jar into the new
%APPDATA%\ATLauncher\instances\NowWhatfolder - Open Command Prompt and go to the new folder:
cd %APPDATA%\ATLauncher\instances\NowWhat - Run the following command in Command Prompt:
java -jar packwiz-installer-bootstrap.jar --bootstrap-update-url https://api.github.com/repos/fuzzyweapon/packwiz-installer/releases/latest -s client http://now-what.duckdns.org:8080/pack.toml - Open ATLauncher
The command you ran will run the pack updater which will grab the file ATLauncher needs to setup another instance for you (it's a part of the modpack). So when you open the launcher in step 7, you will see your freshly re-made instance. After this, you can transfer any personal config files over from your old backup if you wish
If the updater spits out an http error, it is because I probably need to restart the server that serves the modpack, so if it does happen, just tap me on the shoulder.
Also, the updater opening up a bunch of curseforge download tabs is intended. Don't close these till you've gotten through the pack download just to be safe, otherwise the updater could hang up from watching for files that never got downloaded.