Full cleaning just means it'll clean all users on the machine from the administrator's user account.
The smart cleaning section of pro will tell you when a browser has closed and if you get to a certain size of junk. This is what it means by automatic cleaning.
The pro comes with a year of priority support and automatic updates.
Wait a day or so while norton gets a little more trust in the version. It's probably telling you the installer doesn't have enough downloads to be reputable (according to norton's employees or algorithm).
Eduardo, don't post your email address like that, it draws spam to us but more importantly it draws spam to you.
It also sounds like you have a malware messing with ie. Check out rule ten of our forum rules for some trustworthy sites to help you take care of that, and yes it may be the cause of your ccleaner issue too.
Ok, first make sure ccleaner isn't running including monitoring in the system tray. If it's not running go to the folder C:\Program Files\CCleaner and delete ccleaner64.exe. If it won't delete then ccleaner is still running, check task manager(in details mode) you should find it running there.
You'll have to be a little more specific than 3/4 finished, what is the exact message given with the retry button? If it's can't overwrite ccleaner64.exe there's an easy way to fix. But we can't help without knowing for sure.
You possibly checked it at least once, yes? Check your ccleaner's settings in the registry and delete the myapp entry if it's there. Then open ccleaner and see if it's unchecked
I don't agree with it, but most people are indeed fooled by the advertisement. piriform wants new less computer savy users to use ccleaner, and has decided that those users might want pro (why idk, none of the features speak to low-knowledge users).