: A dialog box will appear. Click the button titled "Already Purchased? Click here to enter your serial number" .
If online activation fails or you do not have internet access, use the "Phone Corel" option (though direct phone support is largely discontinued for X5, the automated system may still provide codes): Corel Knowledge Base Disconnect corel draw x5 serial number and activation code work
If you own a legitimate perpetual license, follow these steps provided by the CorelDRAW Knowledge Base : : A dialog box will appear
Since Corel’s servers for older versions may be inconsistent, the method is often the most reliable: corel draw x5 serial number and activation code work