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## Choosing the Type of Installation: In-Place Upgrade, Clean Install, or Dual Boot (1 of 2) - If a hard drive is new a clean install must be installed - If an OS is already installed you have three options - **Clean install**: overwrites the existing OS and applications - In the Windows...

## Choosing the Type of Installation: In-Place Upgrade, Clean Install, or Dual Boot (1 of 2) - If a hard drive is new a clean install must be installed - If an OS is already installed you have three options - **Clean install**: overwrites the existing OS and applications - In the Windows setup program a clean install is called a **custom installation** - Advantage: get a fresh start - **In-place upgrade**: a Windows installation that is launched from the Windows desktop and keeps user settings and installed applications from the old OS - Requires qualifying OSs called upgrade paths - **Multiboot**: you can install Windows in a second partition and create a dual boot situation - Need at least two partitions or a second hard drive