Accounts
Microsoft sign-in, keeping more than one account, switching between them, and what Sour Client stores.

Signing in
The first time you open the launcher, a Microsoft sign-in window opens. Use the account that owns Minecraft: Java Edition. You sign in on Microsoft's own page, so Sour Client never sees your password; it only gets the sign-in token Microsoft sends back, and that token is stored encrypted on your PC.
The account menu
Your head in the top right opens the account menu: who you are signed in as and on what plan, switch accounts, Settings, and Setup guide, which replays the launcher tour.
- Add another account from the same menu, and switch between them without signing in again.
- Sign out removes that account from this PC.
- With Sour Gold, Run more than one game (Settings, Sour Client) keeps a second game open on another profile and account.
If it will not sign in
See Sign-in problems.