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AS OF 13 JAN 2021, THIS TRICK IS NOT WORKING ANYMORE.
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Download software : https://www.ccleaner.com/download
After installation
turn off internet connection
run program, go to
Option>About>Upgrade Pro Version
Fill in any name and paste license.
C2YW-H3PQ-H8VX-PUNB-2ZPC
Turn on the internet.
That’s it.
23 Likes
Hi ,Do i need to block it from firewall as it may connect to internet and blacklist the key ?
1 Like
no need to block it from firewall.
turn off ur internet before activating
2 Likes
Cheers Legend, this worked, see how long it lasts.
works like charm. Thanks buddy.
Thank you, worked like magic 
still working fine after 4 days of using. 
thank you. it works. Great share.
Thanks, it’s working like a charm. and now I have licence software without risk of cracks 
having ccleaner is also part of risk.
thank you still working as of 03/25/2020. today
Works like a charm, Cape Town, South Africa
Still working 18 Sep 2020, UK
Thanks