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CompTIA A+ Core 2 220-1202 · Domain 1: Operating systems

Installations and upgrades: boot methods (USB, PXE, ISO), clean vs in-place vs image deployment vs repair install, GPT vs MBR, third-party drivers

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Last reviewed September 30, 2026 · Leer en español

Installing an operating system has three big decisions: how the computer will boot the installer, what kind of installation you will perform, and how the disk will be partitioned. The A+ exam describes a situation, such as fifty new laptops, a failing Windows install or a new 4 TB disk, and asks which method fits. Getting these choices right saves hours and protects the user's data.

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