Bloatware, also called crapware and junkware, is useless software that finds its way onto your computer. It generally comes preinstalled on new PCs, or bundled together with other legitimate software you downloaded. Some common types of bloatware come in the form of free trials, toolbars, and apps made by your PC manufacturer and preloaded on your machine, like financial or weather apps. Other bloatware looks and behaves a lot like adware and spyware, which are types of malicious software.
Not only is bloatware useless, it also eats up your resources by consuming disk space. Sometimes it runs in the background — even if you’ve never intentionally used it — where it can gobble up your RAM and CPU power.