Glossary · Operating Systems & Software

Bloatware

Bloatware is unwanted software preinstalled on a new device or bundled with an installer that uses resources and offers little value to the user.

Updated October 6, 2026

Bloatware is software that comes preinstalled on a computer or phone, or is bundled into another installer, and that most users neither requested nor need. It consumes storage, memory and sometimes background resources, and may show ads or push subscriptions.

Why it matters

On cheap laptops and phones, manufacturers and carriers often add trial antivirus, game shortcuts and promotional apps, which can slow startup and clutter the system. Some bundles come with installers of free tools that sneak in extra toolbars. The term also describes software that has grown so many features that it feels slow and heavy.

Example

A new laptop might include a trial security suite, a manufacturer update tool and several game links. Removing the ones you do not use through Settings, Apps often speeds up boot. On Android, some preinstalled apps cannot be uninstalled but can be disabled in the app settings.

Common mistakes

  • Removing every manufacturer program blindly; some, such as driver or firmware updaters, are useful.
  • Clicking through installers with default options and accepting bundled extras.
  • Reinstalling Windows from an unknown source to "remove bloat", which can add real malware.

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