FAQ

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

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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.

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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.

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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.

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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.

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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.

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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.

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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.

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Is CCleaner free?
Yes, it is totally free of charge and you can download it instantly on the web.

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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.

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About uninstalling

When you happen not to love this Windows application, this is actually effortless to uninstall. Go to: Start – Settings – Control Panel – Uninstall programs. If you cannot discover this, or even you have installed a more recent Windows variation, then utilize the Windows search to discover the uninstall group. From there find CCleaner name and click on Uninstall.