I don't want to see these prompts EVER. They steal the focus and interfere with normal use of the computer. Just send me an email. Other products allow me to turn off onscreen prompts so why not CCleaner? I get these prompts on several computers and must address it on every one of them 2-3 times a month. If this type of consumer harassment is not stopped, I am uninstalling CCleaner and never buying another Piriform product.
In addition, this special offer seems like a scam. Piriform appears to have doubled the price of CCleaner and then claimed to offer "extra savings" of 50% off. It makes Piriform seem disreputable.