Ellin

Argh ... I have a feeling that my problem getting nervous to the users of this forum ... I'm sorry, it's not my intention, and I apologize for that. But if I solve this problem, my shared experience will also be useful to many others, I think... it is to this that serve places like this, or not? Of course I can format the hd, but so we will never know what happened ... However I will try the solution elsewhere, thanks for all the suggestions, and Merry Christmas!

DVDBANE: I imported the string in the registry ... but the problem remains! At the moment this is my theory: 1) A few weeks ago I picked up a malware that has changed something in the registry file; 2) I removed the malware during an ordinary execution of Avira or Malwarebytes, now my pc is clean, but ... the change in the registry has remained. 3) To solve the problem, I must identify and fix the command line modified (re-install CCleaner does not solve the problem). ...it's just a theory ...

Thanks all for the replies. @Hazelnut: yes, I have a shortcut on the desktop with the correct setting, this is not the problem. @Andavari: I'll put the question even in the forums dedicated to malware. @Dvdbane: I created the .reg file with the key, but I can not import it... ... In the meantime, Merry Christmas to all!

Ok, I opened a new topic (uffa)...

Ccleaner has always worked fine on my pc with Win Xp, then suddenly no longer starts. I tried Ccleaner Portable but it's the same thing. I thought a virus, but I don't have it (I made deep scan with Avira and Malwarebytes, safe and normale mode). I've tried everything: direct click on exe in the folder... I have uninstalled and re-installed CCleaner many times with many different versions, both from Safe Mode from the normal mode... it always happens the same thing: clicking on Ccleaner.exe the hourglass appears for 2 seconds and then stop. Nothing. But in Safe Mode Ccleaner works fine always; in normal mode works only renaming exe file. Then I discovered that Ccleaner works perfectly renaming the .exe file also in normal mode. I often run the registry cleaner with several different programs (JetClean, Regcleaner), and I think maybe there is a command line in the registry that prevents Ccleaner to start, and this command line is not loaded when Windows starts in safe mode, so Ccleaner works. I used HiKackThis both in safe mode and in normal mode, saving and comparing the lists of running processes, to try to figure out which process is NOT loaded in safe mode and allows to run Ccleaner ... but also check one by one I've not found the damned Ccleaner-killer process. I stopped all active processes not essentials, I tried to change the user and the problem has always been: Ccleaner works only in safe mode, or renaming the file .exe - with all the version I tested... CCleaner is the only software that has this problem among all of those installed. What do you think? Do you have suggestions?... Thanks.

Alan_B: can you tell me the causes that you know that can cause this problem? Thank's!!

MTA: I thought the same thing too, but CCleaner is the only software that has this problem among all of those installed ... Now I will try test number 1400: I will install one by one and I will use all the anti-malware in circulation, until I can not flush the Grinch. Hazelnut: You're right, but I would open a post identical to this, with the exact same thread, because this is (and remains) the problem: "Ccleaner not start" and a few lines more or less can not do much confusion ...

I have already done this and the problem remains. I uninstalled the antivirus (Avira) and I have never used a firewall, I stopped all active processes not essentials, I tried to change the user and the problem has always been: Ccleaner works only in safe mode, or renaming the file .exe - with all the version I tested ... I still think the problem is in the file system registry ... for some reason a program (not necessarily malware) amended an education they need to Ccleaner ...

DevlinSyde, Your advice has been the only one to have been really useful for this specific problem ... and I refer not only to this forum, but all over the web (which I scoured long before coming here), then, notwithstanding rule 10, thank you. Returning to the technical question ... I think so. I used HiKackThis both in safe mode and in Windows' regulatory state, saving and comparing the lists of running processes, to try to figure out which process is NOT loaded in safe mode and allows to run Ccleaner ... but also checking one by one I've not found the damned Ccleaner-killer process. Do you think using a different anti-malware program can ferret out the guilty? And if so, which one? Or... does anyone know what this damn process? ...or knows a way to solve this problem (very frequent, judging from what you read on the web) once and for all without using malware removal?

Thanks for the reply! I've tried everything: direct click on exe in the folder... I have uninstalled and re-installed CCleaner many times with many different versions, both from Safe Mode from the normal mode... it always happens the same thing: clicking on Ccleaner.exe the hourglass appears for 2 seconds and then stop. Nothing. But in Safe Mode Ccleaner works fine always. But today it finally happened something new, thanks to you: your advice worked! I renamed the exe file: ccl.exe and for the first time in days worked in normal mode also! So is malware? Should I then try to flush him out with different software from Avira and Malwarebytes? ... What do you think?...

I have the same problem (I have Win XP). It has always worked fine, then suddenly no longer starts. I thought a virus, but I don't have it (I made deep scan with Avira and Malwarebytes). Then I discovered that Ccleaner works perfectly in Safe Mode. I have uninstalled and reinstalled several times different versions, but it's always the same thing with all versions: only works in Safe Mode, never in normal mode. I tried Ccleaner Portable but it's the same thing. I often run the registry cleaner with several different programs (JetClean, Regcleaner), and I think maybe there is a command line in the registry that prevents Ccleaner to start, and this command line is not loaded when Windows starts in safe mode, so Ccleaner works. Do you have any idea about it?