nukecad

As far as I am aware 'Ccsystem.dll' is a very old file that has not been used by CCleaner for 15 or more years. So I'm not sure why the uninstaller would even be looking for that. Unless of course you somehow had a very, very old version of CCleaner installed, or had remnants of a very old one on your computer somehow. Anyway: The first thing to do is to Restart your computer, not Shutdown but 'Restart'. (Restart clears more that Shutdown does, in particular it will stop that failed uninstall if it's still trying to run and preventing you reinstalling). Then try opening CCleaner again If CCleaner still won't open then download the 'advanced' Slim installer from here (3rd one down) and double-click it to reinstall a new CCleaner over the top of the 'broken' one. https://www.ccleaner.com/ccleaner/builds You may need to enter your key again after the reinstall so it's good that you have a note of it. Let us know how that goes.

I've never seen it on either of my two laptops. I do have the reg entry - it's off, and stays off. So while I can't try and test directly I can think of a cople of things. It's especially interesting for those who see it on one machine but not others, they have something to compare so may be better able to track it down. One thing that might be worth checking for those who see it on some machines but not others is if the CCleaner licence keys on each are older style (24-character) or the newer style (20-character, 3 groups of 6 plus the two dashes). Of course for Pro+ it may be the same key used on more than one machine. Which is another possibility, is it only happing with multi-machine Pro+? I can't think of any reason why any of that should make a difference, but when odd things happen you have to start looking for odd causes and ruling them out if you can. Looking at CCleaner itself has to be first, Windows can have too many oddities altogether. (For info both my laptops use an old style CCleaner key, same key on both). There again it may not be CCleaner at all but something subtly different in the Windows setup on each machine, or in user account permissions, or something of that nature. (Plus you can't rule out just what the user may be doing, we have seen in the past users changing things like firewall settings which then cause CCleaner to behave oddly because it can't connect to servers when it wants/needs to).

+1 for 'session'. As the name says it clears what you were doing in your last browsing session, which includes closing any open tabs.

Unexpected things can happen when creating new Windows user accounts, and/or when changing account permissions. In particular a new account/permission status may not be recognised by previously installed software. Is your CCleaner Pro or Free? If it's Pro then what do you have set for the users to be cleaned?

Which account is the Firefox installed in? Which account is the CCleaner installed in? Is your CCleaner the Pro version? You need CCleaner Pro to be able to clean, or otherwise manage, multiple user accounts.

It might have been better mentioning that you were in Namibia earlier. For all we knew you could have been anywhere in the world. (And your English is better than many Europeans, or even Americans, who post here). So yes, the lack of "up to date' infrastructure in Africa may very well have a bearing on your video streaming issues. Unfortunately services such as youtube and facebook are US based and so tend to assume that everyone lives in the USA with access to good infrastructure.

Mmm, you are aware that 3G is in the process of being switched off worldwide. I doubt that it has anything to do with your issues, but you never know. For instance your regular 3G broadcast mast may have been decomissioned so it's now having to connect to a mast further away and so getting a weaker signa? As for the other, if it's on a cororate network then there's not much you personally can do about that network. You'd expect an IT department to keep things up to date, but they do have time constraints and budgets just like the rest of us.

I think the blurry text is probably due to a Windows default setting, the 'transparency' effects can make text blurry when a browser page is loading or refreshing. It's not supposed to do that but it can do. Try turning it off: https://winaero.com/turn-on-or-off-transparency-effects-in-windows-10/ Freezing/stuttering/etc. when watching video can have many causes and can affect any browser. (In my Firefox Youtube will freeze the image for a few seconds, or loose audio at times). It's difficult, almost impossible in most cases, to track down just what the cause may be. As you say it affects multiple devices then I'd probably look to your broadband connection and your hub/router. When was it's software/firmware last updated? Most modern ones update themselves automatically overnight. If you are not sure then you could try switching it off or unplugging it from the power for a minute or two and then back on. That should clear any buffers that may be full and cause it to check for updates when it reconnects to the broadband. (PS. Don't do that too often, if you keep turning it off then the service provider thinks there may be a fault on the line and it will automatically cut your connection speed to compensate).

I do get it, I just wanted to translate it so that those without degrees in the latest business/marketing-speak and buzzwords can understand it without their minds boiling over. (Do marketing people get paid by the word these days?) eg. "a "container" for product use entitlements across multiple products and brands." I'd call that 'an account'. So I've saved about 300 words and come up with: ~~~~~~~~~~~~~~~ A group of related companies, Avast, AVG, HMA and Piriform/CCleaner, now share a common licensing system. When you purchase a product from one of them you get an account and key that can be used across all products that you may later purchase from companies in the group. The key is an 'account key' rather than a 'product key'. Your account has the information of what products you have bought from those companies, and when each product is licenced until. So if you purchase another product, or upgrade/renew a product, the entitlement to use the new purchase is simply added to your existing account. That saves having to have different keys for different products. ~~~~~~~~~~~~~~~ I believe that it's the email address that you use when purchasing that links you to your 'account'. (I can't see how else it would be done without asking if you already have one). And of course if they don't recognise that you already have an account then you will be issued another one, with a different, key.

A common key but with different expiry dates in different products, poducts which are from related but different companies. I think I need to read Dave's post another 3 or 4 times before I could even begin to try to explain it to anyone.

CCleaner is a cleaning tool, it wouldn't/couldn't fix a problem with broken com ports. (Neither would an anti-malware or anti-virus, they prevent/remove nasties they don't 'fix' other things). It sounds as if that Tune-up software has messed your com ports up (and who knows what else). It may have just turned them off - or it may have deleted a needed file or two, or changed/deleted a needed reg entry or two. Tune-up tools can be buggers for doing things like that, in this case then particularly if the tool you used is configured for Win10/11 and not for Win7. I suggest that you make a post over on 'bleepingcomputer' forum and ask for help there, there are knowlegable members who should be able to sort your com problem out. Here's a link to the Windows7 help forum there: https://www.bleepingcomputer.com/forums/f/167/windows-7/ PS. It helps if you can link a Speccy report to your post there so they can see what hardware etc. you are running. If you don't know how to do that then they can walk you through it if they want one. PPS. Also expect some friendly chastisement for using such a Tune-up tool in the first place.

Interesting. @MeganCCleaner can you shed any light on this?

The CCleaner trial is normally 14 days and you don't need to register, just download and try it. If you purchase a full licence then you don't use an email to register that licence - you use the license key that was sent to your email when you purchased. https://support.piriform.com/hc/en-us/articles/204043844-How-to-register-and-activate-CCleaner-Professional

If you have previously ticked 'Do not show me this message again' for a 'skip' popup then in future Custom Clean will simply skip it when necessary without showing you the popup again. It will just show 'skipped' in the results like it does there in your screenshot. And it's easy to forget that at sometime in the past you have ticked 'Do not show me this message again' for a particular item. So at some time in the past you have told CCleaner not to ask again about closing if Real Player 20/20 is running, so it's just been skipped. Presumably 'old' Real Player wasn't running so it got cleaned - or if you don't still have the older RP installed then it could be a glitch in the modified winapp2. Real Player and Real Player 20/20 are seperate apps and so it is possible to have both installed, do you have both installed? https://customer.real.com/hc/en-us/articles/360048296994-What-s-the-difference-between-RealPlayer-RealPlayer-20-20-RealPlayer-People-Search-StarSearch-by-Real-RealPlayer-Discover-RealPlayer-Downloader-RealTimes-RealPlayer-Cloud-

Are the licence keys/codes identical or just similar? Where did you buy each of the licences from? ie. were they bought direct from Avast/Piriform or bought from a 3rd party website?

I haven't got a clue whether it is or not - I don't use either Real Player or Winapp2 myself. I was just noting that the asterisked entry is from Winapp2 - and that Winap2 is currently going through changes. So because of those changes you may now be seeing something different from what you are used to seeing.

The one with the asterisk is winapp2's cleaning definitions, which presumably do more than the standard Custom Clean does. Winapp2 is currently going through some major housekeeping and updating. Entries are being updated/simplified/merged/split etc. Take a look on the Winapp2 sub-forum. So if you use Winapp2 then things may look different and may be a bit 'glitchy' for a while.

Have you actually entered your new key into CCleaner to activate it? Options>License Key>Activate new key

Which offer are you meaning? What product do you have that you are hoping to 'trade in', and for what other product? There are many different offers - Some are 'one time only', some will last for a week, a month, or longer.

I never trust any 'percent complete' or 'time remaining' seen anywhere on a computer. They are just 'best guesses' to give a rough indication - and often innacurate guesses. Windows itself is prone to it. A Windows Update will tell you '100% downloaded' but if you look at Task Manager you see that it's still downloading things, ofter for up to anoter 5 or 10 minutes. Then it does the same with the install, it will say it's complete and you should restart, but if you look it's still beavering away. (If you do restart then it just keeps beavering away after the restart). 'Time remaining's in any software (if they shown it) often suddenly change by a lot. in the end they are all just best guesses and so shouldn't be relied on as more than a rough guide. Once you realise that then you don't get annoyed when they are wrong, as they usually are.

It can sometimes happen that a USB stick suddenly becomes write protected for seemingly no reason. See this for various ways to fix it: https://www.makeuseof.com/tag/how-to-fix-write-protection-errors-on-a-usb-stick/

It depends who you mean when you say "from you". An asterisk next to an entry means it is not a standard Piriform/CClener entry, it's been added by a 3rd party add-on. Winapp2.ini is the 'approved' 3rd party add-on.

Do you have the target drive connected? Both the drive to be recovered from and the target drive to recover to need to be connected. Note that if there are a lot of deleted and overwritten files on a drive then Recuva may/will think it needs the space to restore them all (even though it can't because they are overwritten) - which may be more that the 'recover-from' drive could actually hold. Has your drive crashed so you need to recover undeleted files? Or are you trying to recover accidentally deleted files?

Odd then. Let's blame the Invision software. LOL the emojis have never worked properly for me on here, either from my laptops or my phone. They took ages to load/display. But now they are loading instantly on the phone.

Not sure why? That screenshot is from a Win 10 21H2 laptop (64 bit). I've got a Win 10 22H2 as well, I'll check that when I get home.