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I've used CCleaner from day one, I used to love Piriform and its products. But after the last update the free version doesn't start anymore because they ask me to try the Pro version. And even if I click NO (or "Try Pro version") they want to have internet access, which means the free version doesn't work. Sorry guys, but I will NEVER give you access to my data. Fortunately there are many other options around now. But why do you have to [Edit: "mess"] everything up???

Edited by Stephen Piriform
Alluded expletive removed from title and message

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OP got a "No" option?? I [expletive removed] didn't


So let's start my venting.

Apart from your latest version 5.51.6939 that did NOT indicate anywhere about being the Trial version before downloading and installing it, add these gems to your Hate Mail list:


a. Which idiot there authorised the same filename for both Trial and Free versions - the same QA Manager that let old versions be released under new version filenames on more than one occasion over the past few of years perchance?


b. When the Trial version first opens it shows the box asking to sign up to the Trial version.


Whose bright idea was that, pray tell?


c. Flushed that Trial version out of the system (Gee, isn't Glarysoft's Glary Utilities handy for that?...), went to your "https://www.ccleaner.com/ccleaner/builds" site and down'd the free "Standard installer" file.

As an aside, just why the [expletive removed] did you have to detail acquiring the Slim version to the OP there?

Anyway, installed what I downloaded, had a quick peek into the WinDoze Startup and there's now an interesting entry called "CCleaner64.exe /MONITOR"

"Monitor"?? Curiously I did not see anything during the reinstall asking whether any background monitoring was requested.   

So whose bright idea was that to surreptitiously install that function??


Piriform seriously copped a slap around the head 'n shoulders last time they tried that [expletive removed], so let's see how many more users you lose continuing on with these antics.

Edited by Stephen Piriform
Expletives / curse words removed

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The Slim build was suggested because it's a freeware installer, and it doesn't have any 3rd party software included, and since the OP was already upset why even chance an install with the Standard build which could "mysteriously" install Avast Free Antivirus without any user consent.

Which ever build you download make sure the file names and hashes match to confirm you have the correct downloaded file, you can confirm by looking at this official announcement post:

After getting the correct freeware installer you can disable that startup with Windows by doing the following:
1. Open CCleaner, and go into: Options > Smart Cleaning
2. Disable anything in Smart Cleaning that you don't want starting with Windows.

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Having had serious issues with THAT previous build (that cost me more than a couple of maintenance contract paying clients by the way, thank you very much) I've just looked into this myself.

So why is there now a new Startup item added that wasn't notified ANYWHERE during the Free installation?

You don't even have any warnings posted anywhere.


Should we be now alerting everyone Piriform is back to dicking the End Users around, AGAIN?

Especially as I'm now having to go back to what's left of my customer base that still uses Piriform products and flag this to them.

And how about an actual Manager or Director of Piriform stand up and join in to this conversation - I'd like to get an official statement from him on it.

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@NOW what is going on

Trail versions require an internet connection to check if the user is eligible and not already activated the trial in a given timeframe.

You can always download the free version of the software here on our site:


Or if you prefer the Slim or Portable versions on our builds page:


The free version of CCleaner will always be named ccsetup[version].exe whereas the trial will be cctrialsetup.exe. If you believe this to be incorrect anywhere, please let me know the location you have downloaded this from I will get it resolved.


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I  think people must be doing something wrong!

I've always used the FREE version and because of the previous well-known issues I was still on  CCleaner 5.44.6575 until a few days ago.

I'm now VERY aware of potential issues and look before I leap (install)

I've just updated 3 PCs to CCleaner 5.51.6939 by downloading from the genuine site  http://www.ccleaner.com/ccleaner/download/standard and then manually installing it by clicking on the downloaded ccsetup551.exe file....as I always have done.

Also I run the installations "customised" to prevent CC options from being added to the Recycle Bin Context Menu.

No mention of Trial versions, Smart Cleaning was disabled by default (I was upgrading from a previous version as I mentioned and it kept my settings) and I have NO related Startup item in Task Manager, the only time a CCleaner process appears is when I run it!

I'm the first to complain when things go wrong but in this instance CC is doing just what it should be doing. Btw....before anyone asks - NO - I have no connections with CC or Piriform other than as a user. ;)

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Okay then.

I'll accept the slap on the wrist here for the language language as indicated.
But considering the ongoing litany of honestly...painful decisions that Piriform have released over the past couple of years I certainly hope Management there are taking serious heed on the frustrations they generate.
I'm also more than a little curious on the lack of response for all the actual issues raised in this particular Thread.
We'll start by focussing on just why is there no response "No, I Don't Want To Install The Trial Version At This Time, Let Me Abort The Install" option as noted? Twice.
As far as Ben's response of "If you believe this to be incorrect anywhere, please let me know the location you have downloaded this from I will get it resolved" - the version I acquired that did this painful operation was from the link directly from the previous version of cCleaner when it detected a new one was available.
ie this one - http://www.ccleaner.com/ccleaner/download?upgrade  And that's directly from the installed free version 5.51.6939 (64 bit) FREE FOR HOME USE version currently on this computer.
So methinks "someone" there had better raise the bar on your internal QA procedures and/or ongoing monitoring of how the product is handled perhaps.
Additional Quick Question - why is this particular link not showing any download path directly from Piriform, but your volunteers and apparently Senior staff there always point directly to a Piriform download page?
And yet your actual product doesn't?? See where the frustration from your management decisions are somewhat frustrating?
In all honesty give us a break here - I really think you need to address some serious operation issues with how your product is distributed.I  have multiple customers' experiencing these issues that I point towards this and other threads, and I have to tell you they're not happy either.
And this is not the first time issues have been highlighted with how you release your product to the wild.

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