I have to admit that I don't mind reminders like the one that CCleaner displays. The company added privacy options to CCleaner in 2018 which caused initial confusion as well. Avast acquired CCleaner's parent company Piriform in 2017, and servers were compromised in 2017 shortly after the acquisition. There is no telling, however, whether the popup won't be used to advertise other Avast products such as Avast antivirus products.ĬCleaner has been in the news recently quite a bit. The one downside to this is that you will have to download new versions manually to install them, at least until the July 7 deadline is reached. for example with TinyWall or Windows Firewall Control, it seems that you won't get the advertising popup.

If you disallow the program to connect to the Internet. What you can do is block CCleaner's Internet access.

In fact, there is no option at all to prevent this kind of behavior. There is no option in the program to disable the advertising popup. You can open the Summer Sale page directly here.ĬCleaner Professional adds features such as priority customer support, automatic cleaning, and additional cleaning options to the application. It is rather strange that Piriform/Avast would display two different upgrade offers to users of the program. There you find the offer forÂ â‚¬12.49 instead of $14.95. The reason why there is a discrepancy is that a click on the 'upgrade & save' button opens a page on the CCleaner website. On my system, it displayed a discount of â‚¬10 from â‚¬24.95 to â‚¬14.95 which is less than 50%. There you may notice that the 50% may not have been accurate. The popup message disappears after a few seconds but you can open the upgrade option in the CCleaner interface to display the offer again. Note that the popup is displayed when you run the portable version or the version that gets installed on the system. Treat your computer to automatic cleaning for a stress-free summer You can upgrade to the professional version of CCleaner for 50% off. It highlights a Summer Sale and a discount for CCleaner Professional. The advertisement appears as a popup message in the lower right corner of the screen. I noticed the behavior after installing CCleaner 5.44 on a Windows 10 Pro system it is possible, however, that older versions of CCleaner display the advertisement as well.

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