How to force kill spesific process or multiple processes in Command Window by using process name ?

Please make sure that you do not enter system process while killing some processes. 

• Press Windows key + R
• Enter cmd then click OK
• Write tasklist and press Enter
• Define process name (image name)
• Write taskkill /IM [processname.exe] /F /T
  e.g. taskkill /IM onenote.exe /F /T

Info: 
/IM -> image name
/F -> force
/T -> tree kill

That's all.

Bye :)