Assuming Linux Mint 20 the command should have been sudo apt-add-repository 'deb https://dl.winehq.org/wine-builds/ubuntu/ focal main'
This should have resulted in only the following being written to sources: deb https://dl.winehq.org/wine-builds/ubuntu/ focal main
You seem to have ended up...
If you try to do this as a normal user it will tell you that it can't.
You need to be Root to get a change to stay.
One easy (and perhaps dangerous) way to do this is to start your file-manager with sudo. Your file manager might be Thunar ot PCManFM or something else. Type IN THE TERMINAL e.g...
Which release of Kali Linux have you got?
Are you automatically Root, or can you choose? What happens if you input to a Terminal: torbrowser-launcher
What does your command line look like? Does it have an $ sign or a # sign?
First. This is a Linux website. Linux is not Windows. You want to install Windows over Linux?
Which distro of are you using? How did you put the Windows installation ISO on the USB? I have successfully used WoeUSB. https://www.fossmint.com/woeusb-create-bootable-windows-usb-sticks-from-linux/...