First Of All >> Disconnect From The Internet....
Now Start The Installation ....
After The License Agreement Page,Click Next..
Choose I have A Serial Number, Now open the keygen and Generate A Key Code.
LEAVE THE KEYGEN OPEN (DO NOT CLOSE) ... Now Copy The Key code Into The Serial Number Box By Pressing > CTRL + V <... click next and now finish after the installation. open coreldraw from start menu programs> Activate Now