If you’re not sure, manually browse your Trash folder to put back essential files to their original location, and then empty your Trash folder to regain used Mac drive space.Ģ. This quick cleaning is helpful when you’re sure that there are no vital files left in the Trash. You can clean out Trash files without using the mouse by pressing the “ Shift + Option + Command + Delete” keys. Warning: This may cause data loss hence, backup your Mac before proceeding. Next, go through the various methods below to achieve the Mac clean-up task. Then, wait till Time Machine performs incremental backup of your Mac hard drive or SSD. So, before you clean your macOS Catalina or an earlier version, click the Time Machine icon from the menu bar and select Back Up Now to back up your start-up disk. You won’t regret cleaning up pools of unwanted files from your macOS Catalina, as doing so optimizes your Mac performance instantly and lets you reclaim the storage drive space.īut you may find it difficult to distinguish between essential and unwanted files and accidentally remove crucial files in the clean-up process, resulting in data loss.