Installation on more than one PC

[TVB17]

I have purchased a license for CC Pro. I am a self-employed Technical Writer with 3 machines that I maintain. Am I required to buy separate licenses for each of these machines, or can I install CC Pro on each of these machines under the same license?I know that typically you are allowed only a single installation, but there is a caveat "with certain exceptions" stated on your website, but those exceptions are not explicitly stated or clarified.

 

Thank you.

[nukecad]

The exceptions are stated in the next paragraph on that webpage:
https://support.piriform.com/hc/en-us/articles/204044464-How-many-computers-can-I-install-CCleaner-Professional-on-

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We create licenses for our Professional and Business products (per computer) with some exceptions. For example, if you buy a boxed copy of CCleaner Professional in a retail store, you may be able to install it on more than one computer. Please check the box or packaging for more details.

Boxed edtions for retail sale may, at various times, have included special offers (including possibly multi-machine offers) and some old stock may still be on the retailers shelves. Any offer on a boxed product will still be honoured.

Usually if you want a licence to cover 3 machines you would buy the 'Pro Plus' edition of CCleaner:
https://support.piriform.com/hc/en-us/articles/360028350711-How-many-computers-can-I-install-CCleaner-Professional-Plus-on-

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The CCleaner Professional Plus bundle works on up to 3 computers

For more than 3 machines you would want one of the Business editions:
https://www.ccleaner.com/business/ccleaner-product-matrix

If you have bought 'CCleaner Pro' but now want to upgrade it to 'CCleaner Pro Plus' to cover three machines then email support@ccleaner.com who should be able to help you.