nukecad

Firstly check your email 'spam' folder to see if the registration email is in there. If it's not there then you need to contact support, we cannot deal with licencing/purchase issues on the open forum as we cannot access the required information. You should not post any personal or licensing information on the forum. You should email your query to support@ccleaner.com

If you are using 'Check For Updates' or the 'Update Assistant' to do the update then they should keep your CCleaner installed as it is. If instead you have installed Win 10 from media so lost your installed CCleaner then you can download/install CCleaner Free and re-register it using your existing valid key. If you can't remember your registered name/key you can get them from Options>About>License Information before upgrading the OS. Remember though that most CCleaner keys are valid for a year, so if it's been a while the key may have expired anyway. Again Options>About>License Information should tell you if that's the case, or what the expiry date is if it's still valid. Options>About>Upgrade to Pro then enter your existing valid key and click on Register.

Know what you mean, I've got a friends laptop here and that won't go above 1909 using 'Check for Updates'. I tried using the Update Assistant on it yesterday, but it wasn't having any of going from 1909 to 21H1. (It looked like it was, and took an couple of hours to finally decide that it wasn't going to play nice). I'll probably have do do it by creating an installation USB.

Just done it through 'Check for Updates' Took 5 mins (download speeds of below 5Mbps) from clicking 'Download and install' to 'Restart'. 3 mins for the restart to get back to the desktop. Then another 2-1/2 mins for Task Manager to settle down after the restart. So 10-1/2 minutes overall for the upgrade from 20H2 to 21H1. For anyone interested data usage shows as 4MB for the download.

I've ocassionally had it myself, it due to the installer not being able to contact a server (for whatever reason). As Hazelnut says the Slim instaler should work because it doesn't contact that particular server. Or another option is you could disconnect from the internet while you use the Standard installer, it won't try to reach the server if you are not online.

His screenshot shows that Smart Cleaning is off; which is why the behaviour is odd. Thanks for that about the defender icon Hazelnut, I don't run another AV and had assumed the defender icon would go away if you did. Thinking about it though other parts of the security centre, such as the firewall, will still be active.

My first thought is that your screenshot seem to show a Windows Defender icon in the system tray and that does not seem right if you are running another AV (McAfee). Defender should turn itself off if you have another AV installed It could be that the Two are conflicting. Which could give strange results? I'd probably try turning McAffee off or reinstalling it to see if Defender then turns off. TBH though it's puzzling and only what I would try first. PS. I'd tun off minmise to sysem tray, it's a legacy option for older Windows versions and I only asked to make sure it wasn't on.

Very odd behaviour, the staff have been flagged to your post. A few questions that may be relevant: Is this happening only when you close a particular game, when closing various games, or at other times too? What is your Windows version/build? Is it a PC, Laptop, Tablet, other? I see an icon for Defender there, are you running any other AV, firewall, or security app? In CCleaner Options>Advanced do you have 'Minimize to System Tray' ticked? In Options>Updates do you have automatic updates ticked?

I can see that if you are trying to resize partitions. Maybe try a full disc defrag/degrag freespace without the 'move large files to end' option? Partition resizing tools/apps should be able to handle it as well.

No it's as I stated, the "not" should be there. - I'll admit that it seems counter intuitive until you get your head round it. (When I first came across it it took me a while to grasp it). It's not about what the network actually is, it's all about whether you've told your machine to trust any other machines connected to that network or not. Different machines could see the same network differently, either Private or Public, all depending on whether you told that machine to trust others on the network or not. It's what your machine thinks the network is (what you have told it), rather that what the network actually is. If you've said to allow discovery then Windows assumes that's because it's a private network and you trust any other machines on it. If you've said not to allow discovery then Windows assumes that because it's a public network and you don't trust other machines on it. From that link I gave above:

It's a setting (well 3 different ones) that controls if there is an icon or not in the system tray. See this for an explanation:

That's the Windows Defender Firewall, which is different to the Windows Defender antivirus. Although complimentary as part of 'Windows Security' they work seperately, and can be configured seperately. Windows Defender antivirus will have turned itself off when it saw another AV was installed. If you uninstall the other AV then Windows Defender antivirus will turn itself on again. Malwarebytes lets you choose to keep Windows Defender AV running at the same time as Malwarebytes if you want tho have both running. Something you shouldn't normally do with traditional AV's, but MB doesn't work like a traditional AV which is why Defender AV allows it to be run at the same time. Your network showing as public is a setting you make when you first connect to a network, you have told it not to let your computer be discoverable on that network so it's public. This explains it and how you can change it again from Windows settings: https://www.howtogeek.com/245982/whats-the-difference-between-private-and-public-networks-in-windows/

Malwarebytes is not known for blocking CCleaner. Malwarebytes doesn't usually block downloads or installs, it monitors for an app/programme trying to alter something that it shouldn't have access to. Other AV's can be variable in blocking CCleaner installs. We see it mostly when a CCleaner updated version is newly released. It can take a few days, or in some cases weeks, before all AV's update their databases to include the new version. Some are more prone to slow definition updates than others. Other than that what AV's mostly object to is the 'offer' for other software that is included in the CCleaner Standard installer, which connects to a different server and some AV's see that extra connection as suspicious. That behaviour can also be variable, an AV may block a CCleaner install one week but have no problem with it the week after, it all depends on the AV's definitions. You can get round that by making CCleaner an exception in the AV so that it no longer blocks it. The Slim installer doesn't include that offer so AV's don't (normally) object to it. I'd try updating CCleaner as you normally do for the next update, but if it doesn't work you now know where to find the Slim installer. Or you could set CCleaner to update itself Automatically: Options>Update Many regular users have CCleaner set to notify them of an update, and then use the Slim installer to update. Just out of interest are you running another AV alongside Malwarebytes, (or have Windows Defender turned on as well as MB)? Many Malwarebytes users run it alongside Defender which saves having another AV installed.

We see this now and again and it's usually something blocking the download. Ususally it's an avtivirus, and if it's changed from what it used to do then it could be a change/update to an antivirus. Our first suggestion is to download the 'Slim' installer and use that to install the update. It installs/updates the same CCleaner, but troublesome AV's don't object to it as much as they might to the Standard installer. You can find the Slim installer here, third one down: https://www.piriform.com/ccleaner/builds If that doesn't work then please come back with more details of your Windows version and what AV (and/or Firewalls) you are using.

We have seen problems with accented names before, but I think that was the forum not product registration? @Dave CCleaner Could you pick this query up.

Big Sur is both v10.16 and v11.## Apple decided to change the OS version to 11 at a late stage just before final release. The official explanation why it is both is that it's for compatibility reasons. That's so some apps will see it as a minor update rather than as a whole new operating system. So depending on just where in the OS you look for the version number, and how you ask, it will tell you different things. Some variables will tell you it's v10.16, other variables will tell you it's v11.#, some variables even give you the different answer depending on how you ask. So CCleaner could change how it calls the version number so it would then show OS X 11.#; but that could then give problems for those who are still using OS X 10.# versions. PS. Catalina was the last 'real' OS X 10 at v10.15.

The term 'Defrag' has always been used for both processes, it just which is more important for most users that has changed over time. I know what you mean about running more than once to get things setttkes, TBH it's that long since I've had to do that because once it's done it originally then it tends to stay that way and only needs one run. Of course if you run a full disk defrag that may/will fragment files again, best to stick with file defrag only. (And don't use more than one defragmenter, each uses their own algorithms and tend to undo what the other does). I got an SSD a month or so ago, but had a few problems with 20H2 on this laptop not formatting it (another machine with 1909 had no problem) so I'm waithing for 21H1 to try again before cloning/swapping it with my current HDD. You should not normally defrag an SSD, you Optimise/Trim them instead. Once you install an SSD just let Windows take care of Optimising it. (Windows 10 will also 'inteligently' defrag an SSD if/when needed).

What you are seeing is "Launch the CCleaner app window each time the computer starts" from Options>Settings, which your screenshot shows you have ticked. (Despite what it says it doesn't open a window, it could be worded better/simpler to say what it actually does). What it does is run a clean each time you start your computer, the flashing icon in the System Tray shows that it is cleaning and then it goes away when it's finished cleaning. There are two CCleaner settings that will make a CCleaner process run in the background and so either one will leave an icon in the System Tray all the time: Keep CCleaner Updated Automatically. Smart Cleaning (any of the Smart Cleaning options). If you don't want either of those running and just want a CCleaner icon that you can launch CCleaner from quickly then you can 'Pin to Taskbar' If you could tell us what it is that you actually want to do then we can walk you through how to do it.

Just to note that you will hardly ever have a fully defragmented disk, or files. As soon as you have defragmented Windows will start writing files again, some of which will be fragmented. As long as your own files, documents, photos, videos, etc. are each in one piece then it doesn't really matter. (And TBH it makes very little difference even if they are fragmented, milliseconds longer to load at the most). Most people, including myself, defrag much more often than is needed; it's habit more than anything else.

Defragging the full disk can actually fragment some fies as it tries to fit them into the smallest number of clusters it can. So as you found you can end up with more fragmented files than when you started. Full disk defragmentation is not needed so much with todays larger capacity disks. Once you have done a full disk defrag if needed on an untidy disk, then the best way in future is to do a 'file defrag' for normal use rather than a full disk defrag. It's also a lot quicker. A 'file defrag' gets the files into one piece each, rather than what is traditionally called defragmentation (but which is really disk consolidation) which tries to free up as many whole clusters as possible. What most people want these days is to have their files in one piece each and not worry about a bit of unused empty space in some clusters. And that's just what a file defrag will (attempt to) give you. See the third option "To defragment multiple files:" here: (Once you've used it you'll soon get the hang of it). https://www.ccleaner.com/docs/defraggler/using-defraggler/defragmenting-a-folder-or-file

I tried it from inside VLC itself and got the warning as per triums' first quote. It downloaded the installer and then I had to go to %TEMP% in File Explorer to double click it to install. For the non-technical: %temp% is simply Windows shorthand for your Windows temporary folder, you can type it in instead of having to type the full pathname. (You can use upper or lower case). It typically takes you to- C:\Users\{yourusername}\AppData\Local\Temp

Here is a link to the VideoLAN page that trium has quoted from which gives more instructions on how to update to VLC 3.0.14. Basically you have to update to 3.0.14 by doing a new install, or if you have already downloaded the update through VLC itself it tells you where to find it so you can run it manually: https://www.videolan.org/vlc/releases/3.0.12-update.html

@bengal There was/is problem/bug with the updater in VLC v3.0.12 (and v3.0.13) and so they pulled v3.0.13. They have now released v3.0.14 to fix the bug - BUT because of the fault in v3.0.12 it will not automatically install and so you need to install it manually. See here for more info: https://community.ccleaner.com/topic/43622-vlc-media-player/page/2/?tab=comments#comment-328919

@roby58 There was/is problem/bug with the updater in VLC v3.0.12 (and v3.0.13) and so they pulled v3.0.13. They have now released v3.0.14 to fix the bug - BUT because of the fault in v3.0.12 it will not automatically install and so you need to install it manually. See here for more info: https://community.ccleaner.com/topic/43622-vlc-media-player/page/2/?tab=comments#comment-328919

Not sure but: Advertisers are always trying new ways to get round adblockers. So using more than one blocker is usually a good idea. (I use 2 good addons in Firefox that between them stop most ads). As you are using CCleaner browser then I'd add Malwarebytes Browser Guard and Adblock or AdblockPlus (different companies despite the similar names). You should find them in the google store and add them as you would for Chrome. It's one of those sitiations where different blockers will block different things at different times as the advertisers try to get round them.