Ccleaner will not install in CCleaner Bug Reporting Posted August 16, 2017 I've tried every tip on this forum and it will not install on my pc. I have the latest windows updates as far as I know and I'm running windows 7 pro 64bit. I had the old version and it worked fine but wouldn't update. I uninstalled the old version now it will not install the new one. This is very frustrating as my "disk cleanup" application on this computer does absolutely nothing. I've tried deleting and downloading the installer file again and again and the zip file the admins "offered" just leads me back to the download main screen. I keep getting the following error: Error opening file for writing: 0/ccleaner.exe I tried the recent trick of uninstalling the older version, and then looked to delete the files in the CCleaner folder.... But no program folder was to be found after the uninstall this time. Tried the Update file again and I still got the same Abort, etc message. So, I restored my hard drive to where it was before the uninstall. One more time I tried installing the Update and got the same " Abort, Retry, Ignore." This time... I figured..."What the hey!? I'll use restore if it mesess up!" ... So I clicked Ignore. Guess what? It installed without a problem.