To fix a slow MacBook, you should first understand why its performance speed has decreased. Here are some possible reasons why is your MacBook so slow.

It may be problematic to uninstall preference panes when the related software has been uninstalled incorrectly. Learn how to delete System Preference panes from Mac.

Got too many apps on your iPhone? Want some privacy? Learn how to hide apps on your iPhone...

Mac computers (since macOS El Capitan) provide a Split View option, which allows you to split your Mac...

You may wish to uninstall Tunnelblick on Mac, for example, because you have found a Tunnelblick alternative. Learn how to correctly uninstall the Tunnelblick from your Mac.