First and foremost, don't use piracy. As far as I know, the pirated CMM seen on the market is cracked and can be used directly after installation, and no serial number activation is required.
As a high level of cleanliness for pirated software and the biggest reason to hate piracy, I am well aware of the complexity and unpredictability of such programs being changed by non-developers on the web. Its scanning and cleaning methods may not be the same as genuine, or even the back door, not only can not properly clean up your computer, but will confuse the system and even destroy the system.
So I hope everyone to Cleanmymac official website download use.
It is also recommended that you use the latest version of CMM3, do not use the old version.
The next step is how to clean up correctly. CMM3 provides an "auto-clean" feature that scans and displays the total volume of junk files with a single click, and then waits for you to click to clear them.
A lot of small white probably just installed the CMM later with this method, scan out a look at more than 1G, a look ah good excited, immediately all clear, the result is an accident.
To remind you that this function is quite simple and does not require manual intervention. But it is because of this reason, the content of the scan out exactly what, belong to which kind of rubbish can not be shown in detail, encountered unknown feeling Li White with this method to clean up, will not be swept away, the system itself has some things also cleared out, there will be various consequences.
Therefore, it is recommended that you use caution when using this feature. If you want to use it, it is recommended that you remove content that should not be cleaned up in your preferences, such as language packs, unless disk space is really tight, and don't clean them up.
Cleanmymac Chinese official website http://www.mycleanmymac.com/
Automatic cleanup is really dangerous, so manual cleanup is a lot of natural security. Several manual cleanup functions can display the content that will be cleaned up in detail after the scan is complete, and you can check which items need to be cleaned up and leave the rest.
In the "System cleanup" function, my personal habit is to let cmm2 himself to scan, and then see the detailed results, in the detailed results, clean up the "User cache Files" and "System cache files" in the names can understand the items (usually the most recently used app generated cache), after cleaning up a certain space can be freed. But when these caches are cleared, the next time you open those apps, the cache will be re-created, so try it out.
Large and old files are used to find large volumes of files and folders on disk, as well as content that has not been opened for a long time. After downloading some big software from the Internet and installing it, DMG may be left somewhere and can be cleaned up with this feature.
"iphoto cleanup" and "junk cleanup" are used to erase redundant files in the gallery and the contents of the Trash.
"Uninstaller" I generally used to remove the software after the removal of the trash, after scanning in the "residual files" can see them, as long as the name to determine that the computer is no longer installed on the software, you can safely clear. What you need to tell us is that even if you download the software from the App Store, it may leave trash and be scanned.
"Internet plugins" and "Safari Extensions" in "extended administration" often appear after the software has been unloaded after a thunderbolt (for some reason, from the App Store), which has been removed, but the plugin may still be there and needs to be cleaned up to be completely uninstalled. Simply determine if you need to clean up by name.
The use of experience to summarize is that after the scan to see the names of those items, unfamiliar, do not clean up, there will be no problem.
In fact, Mac garbage cleanup software is not so scary