Download and Install SP1 Separately: If you installed from an older Windows 7 disc without SP1 integrated, you'll need to install Service Pack 1 afterwards.
These ISO images have Service Pack 1 integrated, so you'll already have Service Pack 1 after installing from them.
The Windows 7 Service Pack 1 Convenience Rollup requires you already have Service Pack 1 installed. If you're installing Windows 7 from scratch, you can get this in one of two ways: Related: Where to Download Windows 10, 8.1, and 7 ISOs Legally Step One: Install Service Pack 1, If You Don't Have It Already Here's how to download and install the Convenience Rollup so you don't have to do it the hard way.
