To open the on-screen keyboard, press and hold the Windows+R key and type “osk” in the Run dialog box.
If the NumLock key is on but you cannot resolve this issue using your hardware keyboard, you can use the OSK (On-Screen Keyboard) provided by the Windows OS. Solution if NumLock Won’t Turn Off On-screen Keyboard In case the number lock is the culprit, pressing the NumLock key once can solve the problem in a jiffy. When the Num Lock is disabled, it will allow the typing of numbers. Instead, an alternate character that is assigned on the number key will be typed.
When the NumLock is in use, users cannot type numbers. Razer Cynosa Chroma Membrane Keyboard Unboxing and Review