![]() ![]() To follow the steps in this article, you'll need an empty 16GB or larger USB thumb drive (USB-C or USB-A, depending on your Mac) and an hour or two of downtime while the installation procedure completes.Īlso, be sure to perform a full backup of your Mac beforehand using Time Machine, so that you can restore your original system from the Recovery partition if something goes wrong. Performing a clean install can also remove annoying quirks and strange behaviors that your Mac may have inherited over time, and often helps to reclaim disk space caused by junk files left by third-party apps. Hot Articles Guide to Optimize Your iMac/MacBook How to Clean Install macOS High Sierra on Your Mac How to Downgrade from macOS Catalina to an Older Version Mac Data Management: Free Up Storage Space on Mac Top 5 Backup Software for Your Mac Top 5 Must-Know Data Recovery Software for Mac/PC How to Upgrade to macOS Mojave Public Beta Best 5 Screen Recording Software for MacThis article guides you through the process of performing a clean installation of macOS 10.15 Catalina using the bootable USB drive method, rather than upgrading your Mac using Apple's standard installation package, which retains existing user data and any user-installed apps.Ĭreating a bootable USB drive provides you with a convenient way to install a fresh copy of macOS Catalina on multiple Macs. You can use Windows cleaning options and other third-party tools that do a better job at tasks like finding duplicate files.Securely clean up the junk files, big files, unneeded files on your Mac to speed it up. If you rarely run low on disk space, only use one browser, and don't mind updating software manually, then there's really no need for you to use it. So whether you should use CCleaner depends on your needs. ![]() And some CCleaner tools, like Uninstall and Startup, just duplicate Windows functionality and are thus of little use. ![]() TreeSize is a much better disk analyzer and Patch My PC is better at updating software. Many of these are free and often do a better job than CCleaner.įor example, Windows's Disk Cleanup handles a lot of what CCleaner's cleaning tools do. However, you can access a lot of CCleaner's features in other utilities and software. And the Drive Wiper and Software Updater (if you pay for Pro) are useful. For instance, if you use multiple browsers, it's convenient to remove temporary files from all of them at once. To be fair, there is some use to CCleaner. Software Updater is another panel for accessing the function mentioned above. The Uninstall tab duplicates the methods for uninstalling provided in Windows, though it does make it easy to save all your installed programs to a text file. Here you'll find several additional utilities of varying usefulness. Rounding out CCleaner's feature set is the Tools tab. Microsoft's official statement on Registry cleaners recommends staying away from them don't even bother with this feature of CCleaner. While most people regard CCleaner's Registry cleaner as better than other random ones online, you still don't need to use it. In fact, if a Registry cleaner is too zealous, it can actually cause more problems than it solves. While orphaned entries and other minor problems do occur in the Registry over time, there is no good evidence that cleaning the Registry will speed up your computer. This section is simple: you don't need to use Registry cleaners. But now, are these problems cleaned up? And further, is CCleaner even worth using?Ĭheck everything you're interested in cleaning and hit Analyze to see how much space your action will save. Have a look at our guide to replacing CCleaner for more history and information.Īll of these factors made it feel more like an unwanted program than something that benefits your computer. On top of this, CCleaner's free version regularly nags you to upgrade to the paid version. That update also made CCleaner difficult to close through standard methods.įinally, in 2018 the app also started ignoring users' preference to disable automatic updates. This is fairly standard, but the problem was that when you turned the setting off, it re-enabled itself upon a reboot. Later, the company introduced an "Active Monitoring" feature that collected anonymized data about your usage. The 32-bit app version on CCleaner's website was hacked, adding a Trojan to the download, which the company thankfully caught before it became widespread. In case you're not familiar, CCleaner's issues started in 2017 shortly after developer Piriform was bought by Avast. ![]()
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