Error 0x80073cf9 for 1.34MB update?

I can’t start Forge anymore. Windows spends a few seconds trying to download the update then just get stuck with error 0x80073cf9.

Did you delete any files like the 10gb of useless extra languages from the game folder? It won’t let you update when you do that I think. So you have to uninstall the game and redownload the whole thing.

Oh balls. Thanks for the help