VareseKhalori

I did some sleuthing online and discovered that you can run CCleaner in debug mode. Here's what it spat out. I hope someone can make sense of this. https://pastebin.com/C0XTrYaS EDIT: I tried creating a dummy `license.ini` and running CCleaner in debug mode once again (debug code 0) https://pastebin.com/5A1XPahL This time, I got something of a response. CCleaner still exited out immediately, but I got a screen asking me for my name and license key. I am now convinced that there is something wrong with memory location 0x7ffc56cd2d58, but I don't really know what to do with this information. I tried doing a search inside of regedit, which brought me nothing. I don't really know what I expected, lol. (Also, on a side-note, I fixed the boot-every-other-time thing. Turns out, I just had to turn off "Fast Boot" in windows settings (Control Panel\All Control Panel Items\Power Options\System Settings) ) unfortunately the boot-every-other-time thing had nothing to do with CCleaner, though it was a stretch

Argh, too late to edit above post, so I have to double post. Did some googling on the `0xc0000005` error, and I guess that the corresponding error code for that hex address is an access violation error. Some of the solutions listed included running SFC, memtest, chkdsk, and reinstalling drivers. I don't know what drivers to reinstall to get CCleaner to work (this is the only thing that, to my knowledge, is giving me this error) and SFC, memtest, and chkdsk all did not do much. I also attempted fiddling with bios. There were no options to remove/forget HDDs or anything like that. The best I could do was rearrange some boot options and also turn off fast boot--which seems to have not had any effect. My BIOS is the blue and grey American Megatrends one, nothing fancy. TL;DR: CCleaner 5.64 slim and 5.63 both give me the same error message on launch/installation (respectively) For some reason, I can only successfully boot every other time, and I've tried applying Andavari's solution, which didn't work. I have already tried: SFC, Memtest, and Chkdsk to see if they helped with the error message, of which none worked.

I tried uninstalling 5.64 and installing 5.63, but the installer still crashed. I decided to boot back in to safe mode in order to grab the exact error message that pops up whenever the installer crashes. Interestingly enough, the installer failure error message is the same as when I try to launch CCleaner 5.64 in safe mode. It is as follows: Exception Processing Message 0xc0000005 Parameters 0x7ffc56cd2d58 0x7ffc56cd2d58 0x7ffc56cd2d58 0x7ffc56cd2d58 The header for the error message was: CCleaner 5.6(x) FREE FOR PERSONAL USE -- CCleaner64.exe where the (x) is either 5.63 or 5.64. I don't really know what to make of the hex codes I was getting with the error message, but the issue where I need to boot twice has re-emerged. Gonna try applying the BIOS fix to see if that helps, but I kinda wanna figure out the underlying issue here--something with the `0xc0000005` memory address??

Slim installer was able to install correctly, and SFC showed no errors. Now, CClearner won't launch at all--its entry in task manager only shows up momentarily, then disappears.

Cool, I will keep that in mind if it starts happening again! The chkdsk seems to have caught and fixed it, but this is the second time it's happened and gotten fixed. I never really had a solid explanation for it. Any ideas on getting CCleaner installed?

MBAM and possibly Windows Defender? Also use SpyBot S&D but that doesn't have any automatic protection afaik. should have mentioned. whups.

Hello, I've been trying to install CCleaner recently. I used to have it on this computer a while back, but whenever I tried to run a scan, it would crash. I tried uninstalling/reinstalling CCleaner, and it didn't work, so I gave up on it. Here I am now, and I am making the post I never bothered to a while back. Whenever I try to install CCleaner, be it the trial, free download, or slim version, the installer crashes as soon as I hit the 'Install' button. I've checked task manager for any preexisting CCleaner instances, but there is nothing. When I attempt the installation with task manager open, I see CCleaner run only momentarily before completely disappearing. It doesn't matter if I run the installer as admin. I've tried clearing any CCleaner-related files, renaming the installer, running the portable version, launching the installer in compatibility mode, disabling antivirus, and trying to install in safe mode. When I try installing older versions of CCleaner, I get a popup saying that it is incompatible with my current version of windows (this is even, like CCleaner 5.4 or so) I get no error messages at all, CCleaner just disappears. However, when running the installer in safe mode, I get a windows error message: Error completing operation 0xc0000005 at address ... A cursory google took me to a microsoft support site, recommending I chkdsk and run the Windows Memory Diagnostic. I did that, but that only fixed a different issue (My PC would only boot successfully on every other attempt; I'd get to the windows logo with no loading animation, then have to hard-reboot in order to use the machine.) After the chkdsk and memory diagnostic, I still got the same error message-- Error completing operation 0xc0000005 etc. (quoting error message from memory, I can boot into safe mode and verify it if that helps) I've tried a lot of things, probably all "common solutions", none of which have helped me install CCleaner. Below are system specs: Windows 10 Home Version 1903, build 18362.657 AMD FX(tm)-6120 Six-Core Processor 3.50GHz