Delete the 'Hearts of Iron IV' folder entirely - if you have saves you want to keep, delete everything in that folder but the 'save games' sub-folder instead.Find the folder where your HoI4 saves are kept (it's probably going to be in your Documents folder, some variation on C:\Users\ YourName\Documents\ParadoxInteractive\Hearts of Iron IV - once you get there, you'll see folders for 'logs', 'save games', 'mod', etc.).Go to wherever you had HoI4 installed (it'll either be in SteamLibrary\SteamApps\Common or in ProgramFiles\Steam\steamapps\common, depending on your setup) and delete the 'Hearts of Iron IV' folder that remains there.Uninstall HoI4 (if you're using Steam, go into your Library, right-click on 'Hearts of Iron IV' and the Uninstall option should be under 'Manage').Unsubscribe from all HoI4 mods (yes, all of them).The pull-down menu should say 'NONE - Opt out of all beta programs') Ensure you aren’t on any beta branches of HoI4 - if you're using Steam, the way to check this is to go into your Library, right-click on 'Hearts of Iron IV', select 'Properties' and check under the Beta tab.For the love of all that is holy, please use a legal copy of HoI4.
The step-by-step process for that is as follows: If you are having issues with Kaiserreich that you can't pin down, it may be worth doing a clean re-install of both Hearts of Iron IV and Kaiserreich. If you are experiencing problems with the HoI4 launcher, please check our troubleshooting page.