Tim98798 Posted July 14, 2009 Share Posted July 14, 2009 This is new behavior affecting only one of my two PCs. (CCleaner had run flawlessly on both machines for several years.) First noticed the problem this week while running older CCleaner v220, but upgrading to current v2.21.940 didn't help. Symptoms: -Just bringing up the CCleaner window cause the 95% CPU load. Killing the window (there is no exit button, right?) leaves the process alive and still loading the CPU. - If I do this twice, then I have two CCleaner processes, each with about half the CPU load, which still totals about 95%. - I can't kill either CCleaner process with the Windows Task Manager. Must reboot to recover my CPU. - CCleaner options are set to the default ones. Machines: Both PCs run Windows XP Professional, SP3 with all current Critical and High Priority patches (except I don't have IE8). Also, I believe both machines to be clean of malware. (I use AVG Anti-Virus Free, SUPERAntiSpyware, Kerio Personal Firewall, Patch advice from Secunia Personal Software Inspector, and I browse with FireFox using the Sandboxie virtual environment.) Any assistance much appreciated. Link to comment Share on other sites More sharing options...
Moderators hazelnut Posted July 15, 2009 Moderators Share Posted July 15, 2009 First of all could you try a clean install of ccleaner? 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...
Tim98798 Posted July 15, 2009 Author Share Posted July 15, 2009 First of all could you try a clean install of ccleaner? Thanks for the idea. It worked. I uninstalled it with Add Remove Programs, then re-installed it. I'm happy, but a little surprised since it looks like the same wizard which ran as when I upgraded. Again, assistance appreciated. Link to comment Share on other sites More sharing options...
Alan_B Posted July 15, 2009 Share Posted July 15, 2009 The ONLY situation when Task Manager has not killed something is when I cannot launch it because something is taking 100% CPU.. Then I reboot the P.C. and launch the Task Manager BEFORE I start what I may wish to kill My secret is perseverance. In the Applications Tab I select whatever it is, and press End Task. Normally successful first time, if not try again. If that fails I go to Processes and select the relevent *.exe, then 1. Try the End Process button, if that fails 2. Right click context menu and invoke "end process", if that fails 3. Right click context menu and invoke "end process tree". If that fails, there has been a system error and a report is being created for sending somewhere, and things like Drwatson.exe and Dumpreg.exe will not permit ending the process, then 4. Select DrWatson.exe (or similar) and "end process" or "end process tree", 5. Select Dumpreg.exe (or similar) and "end process" or "end process tree", 6. I have never got this far - as soon as dumpreg.exe is killed the process I first ended then shuts down. Regards Alan Link to comment Share on other sites More sharing options...
Moderators Andavari Posted July 16, 2009 Moderators Share Posted July 16, 2009 If processes are in the hanging state the hang can also come from drwatson (drwtsn32.exe, drwatson.exe) running (Windows Fault detection utility, DrWatson Postmortem Debugger). Sometimes end tasking drwatson will allow a hung app to successfully crash and produce an error log. You should restart Windows immediately though, as the system may be running in an unstable state. Link to comment Share on other sites More sharing options...
Moderators hazelnut Posted July 16, 2009 Moderators Share Posted July 16, 2009 Glad you are sorted TIm Good info from Alan and Andavari there on taskmaster issue with DrWatson. 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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