After months or years of use, your PC stores a large number of unnecessary temporary files. As they’re called temporary files, you’d think they would go away on their own. Unfortunately, that’s not always the case, and these files can take up large chunks of your hard drive’s storage space.
One of the most useful features in are antivirus software is Optimizer or something similarly named. This tool searches your computer for temporary files and other useless junk taking up space. It then permanently deletes those files and gives you more storage space. This can be especially useful on laptops, which traditionally have limited storage.