I have been using CCleaner for many years.
Having just upgraded my computer, i cannot find my activation key.
How to sign in for something i have already paid the annual subscription.
(email removed for users security - nukecad)
You can look up your licence key here, it will be re-emailed to you: https://www.ccleaner.com/support/license-lookup
If you no longer have access to the email address that you used when you bought your CCleaner then you will need to contact support by emailing them at: support@ccleaner.com