How do you use a strong attack with a PC keyboard in Witcher 3?

Solution 1:

According to Cant strong attack, left shift and left mouse dont work, holding down shift and double-clicking the left mouse button (instead of a single click) will make you execute a strong attack:

You have to make shift+double click. At least for me that works.

I've found this to work in combat, but inconsistently, as noted by someone else in the next post to that thread:

Only sometimes. Something is wrong with the keyboardinput.

Solution 2:

On PC strong attack has it's separate binding and after some updates it might be reset to None. You can bind it to any key in the keys settings.

Update: I have played the latest patched game, and strong attack is Shift+Left Mouse Button