Kezooz

Hi. I purchased CCleaner Professional Pro a little while back. It allowed me to install on upto 3 computers which I duly have done. Now I have a fourth computer that I would like to install CCleaner. Can I add another computer to my existing licence? If not, what are my other options?

Trying to update CCleaner using the link at bottom right. When I go to click on Update Now, I get the following message.....0x6: The handle is invalid. Can someone explain why this is happening and hopefully tell me how to fix it? I'm running V5.67.7763.