don't you fucking dare come to us saying you use tlauncher.
we won't help you. at all. delete that shit.
- download Prism Launcher - "
PrismLauncher-Windows-MSVC-Setup-VersionNumber.exe" - install prism launcher and then run the following in a command prompt:
echo {"accounts": [{"entitlement": {"canPlayMinecraft": true,"ownsMinecraft": true},"type": "Offline"}],"formatVersion": 3} > %appdata%/PrismLauncher/accounts.json - profit.
there's also "sklauncher" - but we've never tried it or used it.
use it at your own risk.