Think you'll find these are the key bits in the error txt file...

Machine Properties:

Machine name: HOME-PC

Machine processor count: 8

OS version: Windows 7

OS service pack: Service Pack 1

...

Package properties:

Description: SQL Server Database Services 2008 R2

ProductName: SQL Server 2008 R2

Type: RTM

...

Installation edition: ENTERPRISE

...

I don't believe you can install or upgrade SQL Server 2008 R2 Enterprise Ed. on WIndows 7...unless someone can correct me on this :Whistling:

Edit: Hex colour setting didn't work, so have removed them.