WTAF Posted March 3, 2022 Share Posted March 3, 2022 Hi. I decided to uninstall CCleaner since I don't use it. I went to Add/Remove programs (through Windows settings). Checked CCleaner. Chose "Uninstall". While uninstalling I noticed alot of weird s**t in the information window. It started to remove things from folders that has nothing to do with CCleaner. When at 100% uninstalled - I noticed it removed everything from my Dropbox-folder (which has important stuff in it but luckily it can be restored from their website). Looking further, I now see it removed almost every program from my Programs-folder on two of my three hard drives. All my installed games on Steam, on the Battle.net-app. All my virtual instruments I use for making music etc. Wtf is this? I don't have a recovery-file for Windows so I can't roll back to before I uninstalled CCleaner. Obviously I have to re-install EVERYTHING I lost. Can someone answer me WHY this happens? Fix this f***ing bug immediately. I feel sorry for all the people with less experience using CCleaner. Seems to be more trouble than it actually helps. Link to comment Share on other sites More sharing options...
APMichael Posted March 5, 2022 Share Posted March 5, 2022 I can confirm this extremely dangerous bug! And I honestly find it an impertinence from Piriform that this bug, which has already been reported several times, has not been investigated. The problem already starts with the installer. If another installation folder is selected here, the installer does not automatically attach the "CCleaner" folder. This leads to the fact that CCleaner is installed unintentionally e.g. into the folder "D:\Program Files" and not into "D:\Program Files\CCleaner". If the Unistaller is executed now, it deletes the complete content of the folder "D:\Program Files"! How do you manage to code an uninstaller so badly? By the way, reproducing the bug took me less than 5 minutes in a VM. Very sad that Piriform can't manage something like that itself... Link to comment Share on other sites More sharing options...
Moderators Andavari Posted March 6, 2022 Moderators Share Posted March 6, 2022 I've pinned this topic, and will leave a link to it in the staff area. Edit: Hazelnut already linked to this topic. Link to comment Share on other sites More sharing options...
Moderators hazelnut Posted March 7, 2022 Moderators Share Posted March 7, 2022 @APMichael I believe that the devs are now looking into this. Support contact https://support.ccleaner.com/s/contact-form?language=en_US&form=general or support@ccleaner.com Link to comment Share on other sites More sharing options...
APMichael Posted March 7, 2022 Share Posted March 7, 2022 @hazelnut@Andavari Thank you. Let's hope that the bug will be fixed quickly and the internal testing will finally get better as well. Sorry if my last post sounded a bit harsh, I guess the disappointment about CCleaner's constant bugs had built up. Link to comment Share on other sites More sharing options...
Admin Dave CCleaner Posted March 7, 2022 Admin Share Posted March 7, 2022 That CCleaner should be removing everything from its installation directory is, under normal circumstances, exactly what you would want CCleaner to be doing. Not just the files from its original installation manifest but any updates, log files, etc so that it does not leave any traces of itself behind. Looking back through older forum posts I can find a couple of other cases over the past year where it looks like similar things may have happened. It seems as though a problem arises if an advanced user (after clicking through "Customize" and then "More" in their initial installation) has mistakenly configured their CCleaner installation directory to be {foldername}/ instead of {foldername}/CCleaner. So not a new issue if so, and a rare set of circumstances, but high-impact and one we'd want to shield our users from creating. The devs are looking at alternatives at the moment. We don't want to have circumstances where CCleaner errs on the side of caution and leaves bits of itself behind, or to prevent advanced users from installing CCleaner where they wish. A likely safety measure would be to partially sanitise the installation location chosen to ensure that it is indeed going into its own directory and not a parent directory. Piriform Homepage - [CCleaner - CCleaner Mac - CCleaner Android - CCleaner Browser - Recuva - Speccy - Kamo] - Product Support Looking for your licence key, expiry date or download link? Check here first: https://www.ccleaner.com/support/license-lookup To find out how we protect your privacy - read CCleaner's Data Factsheet. What's new? Check the latest CCleaner for Windows release notes. Link to comment Share on other sites More sharing options...
APMichael Posted March 7, 2022 Share Posted March 7, 2022 Thank you for the reply. In my opinion, it is not very useful if an installer accepts "C:\", "C:\Program Files", "C:\Program Files (x86)", etc. as the installation folder without a subfolder for the application. Unfortunately, this seems to be standard for NSIS based installers, for whatever reason... However, the uninstaller of other applications (e.g. Firefox) at least deletes only its own files and subfolders. You should actually know at Piriform which files and subfolders will be added after installation when CCleaner is used, so a list with the corresponding file and folder patterns should be easy to implement. Such a list should always be preferred over aggressive recursive deletion. Link to comment Share on other sites More sharing options...
Admin Dave CCleaner Posted March 8, 2022 Admin Share Posted March 8, 2022 1 hour ago, APMichael said: Unfortunately, this seems to be standard for NSIS based installers Not the first time that our use of NSIS has created a rod for our own back. 1 hour ago, APMichael said: You should actually know at Piriform which files and subfolders will be added after installation when CCleaner is used In theory. In practice this can depend a bit on what version the user originally installed, what updates they have had, if any updates are still incomplete, if they had log files in there, etc what their initial manifest of files was and what would be there now. Ensuring that the installation directory chosen is its own folder is probably the tidiest way to go. Piriform Homepage - [CCleaner - CCleaner Mac - CCleaner Android - CCleaner Browser - Recuva - Speccy - Kamo] - Product Support Looking for your licence key, expiry date or download link? Check here first: https://www.ccleaner.com/support/license-lookup To find out how we protect your privacy - read CCleaner's Data Factsheet. What's new? Check the latest CCleaner for Windows release notes. Link to comment Share on other sites More sharing options...
rounakr94 Posted April 4, 2022 Share Posted April 4, 2022 Faced same issue. CCleaner removed all contents of Folder D:/Applications on uninstalling from Windows control panel. Point to be noted is the CCleaner was installed under D:/Applications/CCleaner App version was 5.91 and latest on website as of 04-04-2022 1:00 PM IST Link to comment Share on other sites More sharing options...
Hmm Posted May 20, 2023 Share Posted May 20, 2023 What was the cause of this, a year later? Link to comment Share on other sites More sharing options...
Moderators nukecad Posted May 20, 2023 Moderators Share Posted May 20, 2023 4 hours ago, Hmm said: What was the cause of this, a year later? As Dave CCleaner stated above; the cause was if an advanced user installed CCleaner into a non-standard location but didn't specify a seperate folder for CCleaner in that non-standard location. If that had happened and CCleaner was then uninstalled, then everything in the folder where it had been installed would be deleted by the uninstall. That's why CCleaner should have been installed in it's own seperate folder. If CCleaner had been correctly installed into a folder of it's own (whether called 'CCleaner' or not) then only the CCleaner files would have been removed on an uninstall. It would be pretty rare for that particular set of circumstances to happen, but it could happen (did happen) and so it was a bug. *** Out of Beer Error ->->-> Recovering Memory *** Worried about 'Tracking Files'? Worried about why some files come back after cleaning? See this link:https://community.ccleaner.com/topic/52668-tracking-files/?tab=comments#comment-300043 Link to comment Share on other sites More sharing options...
Hmm Posted May 20, 2023 Share Posted May 20, 2023 Thanks. That's one more reason why I won't install a program application onto any other drive but C (System) drive. I've had bad experiences in the past ( going back to Windows 95 days) where If I do so, things can go array. But I can understand why some people would want to install onto a drive other than C. Link to comment Share on other sites More sharing options...
Admin Featured Comment Dave CCleaner Posted May 22, 2023 Admin Featured Comment Share Posted May 22, 2023 On 20/05/2023 at 09:31, nukecad said: the cause was if an advanced user installed CCleaner into a non-standard location but didn't specify a seperate folder for CCleaner in that non-standard location. ... and this was solved a year ago in CCleaner 6. From the release notes: "To avoid mishaps, CCleaner will always be installed to a /CCleaner/ folder" - to prevent users declaring root folders as the CCleaner installation folder. Piriform Homepage - [CCleaner - CCleaner Mac - CCleaner Android - CCleaner Browser - Recuva - Speccy - Kamo] - Product Support Looking for your licence key, expiry date or download link? Check here first: https://www.ccleaner.com/support/license-lookup To find out how we protect your privacy - read CCleaner's Data Factsheet. What's new? Check the latest CCleaner for Windows release notes. Link to comment Share on other sites More sharing options...
AlexBotsford Posted September 22, 2023 Share Posted September 22, 2023 (edited) I am facing a problem. Edited September 22, 2023 by AlexBotsford Link to comment Share on other sites More sharing options...
Moderators hazelnut Posted September 22, 2023 Moderators Share Posted September 22, 2023 25 minutes ago, AlexBotsford said: I am facing a problem. Would you like to give us some clues about it ? Support contact https://support.ccleaner.com/s/contact-form?language=en_US&form=general or support@ccleaner.com Link to comment Share on other sites More sharing options...
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