What operating systems does CCleaner work with?
It is compatible to both 32-bit and 64-bit versions as following:
Windows XP / Vista / 7 / 2000
Now also for Mac:
Mac OSX 10.5 or 10.6
How can I upgrade CCleaner if I have the old version installed?
You do not have to uninstall the old version, just run the install file and run the latest release.
Do I have to be and administrator in order to install CCleaner software?
In most occasions yes, you have to be logged in as an administrator to install new software.
Why are the Custom Files and Folders not cleaned by CCleaner?
You need to activate the function under the Windows Tab -> Advanced. Then they will be cleaned as well.
Does the software clean all the user accounts?
Right now the program cleans only the user’s account that you are logged in for security reasons.
Do I have to be logged in as an administrator to run CCleaner?
Yes, it would be better. Then you can use all the options to get full performance by the program.
How can the registry backups be restored?
Make a right-click on the .reg file and click on Merge. If you have not set other location, it will be now in your My Documents folder.
Why does the program close after the work?
It has been set up like this by default. You can always change the settings under in the program.
Is CCleaner free?
Yes, it is totally free of charge and you can download it instantly on the web.
Is this the official webpage?
No, this website ables to download free open source software, but the official page is here at Piriform who is the developer of the program.