In window you can use grave key to switch between keyboard languages. How do you type grave and Tilda symbols after that?
You can always do it with its Alt code: Alt+96 for the grave accent, and Alt+126 for the tilda.
If you want to use those accents in combination of other letters, you have mainly 3 solutions:
Apart from @m4573r answer, you can type ` and ~ by just push and hold the key for longer than 1 second.
it will appear like this
now you got the these characters :0