Twitch just doesn't want to close?

I had to download Twitch for Modpacks now it just doesn't want to go no matter what Alt F4, cross, close window… Everything does not work, it starts as soon as the PC turns on and annoys only who has a solution (from the start I already have it deleted but every time I turn it on it doesn't go away)

Can anyone please help me? : 3

Edit: Task Manager does not work because Twitch itself can't be closed

Press Ctrl + Leftshift + Esc

Then the task manager opens

Select Twitch and close it (button at the bottom right)

Press Windows + R

Then type "appwiz.cpl" and hit enter

Select Twitch and uninstall it

If it doesn't work or you don't know what to do, you can contact me.

I have of course already tried Taskmanager, but even then Twitch doesn't want to close, nothing happens and I can't uninstall it because I need it anyway, thanks!

Try the following

Window key + R

Then enter "cmd" there and press Enter

in cmd then the following command:

taskkill / PID process name / t / f

CCleaner might help you for the autostart or much easier:

Very short and crisp

In the task manager there's a tab called "Autostart". You can deactivate the autostart at Twitch.