Will Reinstalling macOS Speed up My Computer?
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You might need to remove some startup programs, run updates on your system, or clean out your storage drive to fix this issue. But if none of these fixes have an effect, reinstalling macOS can likely help speed up your system. This is especially the case if your Mac is approaching a decade of life.

Is it worth it to reinstall macOS?

No. Doing it so often is not a good idea. MacOS is a stable system and if you need to clean up your disk, just use special software for this. You may need to do a clean install only if you detect some issues or malware on your system and this is the only way to fix them.

What will happen if I reinstall macOS?

2 Answers. It does exactly what it says it does–reinstalls macOS itself. It only touches operating system files that are there in a default configuration, so any preference files, documents and applications that are either changed or not there in the default installer are simply left alone.

Alexander Ross

Alexander Ross

Gaming, Esports & Interactive Media Writer

Alexander Ross has covered the video game industry for a decade, writing deep dives on game design, esports tournaments, VR developments, and gaming culture.

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