CCleaner, developed by London-based software maker Piriform, is a utility for computers running Microsoft Windows or Mac OS X or later. It can remove potentially unwanted programs from acomputer, and clean out unnecessary or temporary benign files, freeing up hard disk space.
On Windows PCs, CCleaner also fixes problems in the Windows Registry, and can uninstall software and select Windows startup programs.
CCleaner will run on any Mac running OS X 10.5 Leopard or later (including PowerPC-based Macs), but we’ll be showing how to install and use it on a Windows machine, which needs to be running Windows XP or later.
1. Navigate to https://www.piriform.com/ccleaner.
2. Click the Download button.
3. Click the Download button under the CCleaner Free column on the next Web page.
4a. If Internet Explorer is your browser, click “Run” in the gold-trimmed dialog box at the bottom of the next webpage.
4b. If Mozilla Firefox is your browser, click Save File if a confirmation dialog box appears.