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. Install From an Disc or ISO That Contains Service Pack 1: Microsoft offers Windows 7 ISO images for download.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.
If you're installing a Windows 7 system from scratch, you'll need to go out of your way to download and install it. If you don't, Windows Update will download and install the updates one by one-the slower, more tedious way. This update package, which combines updates dating all the way back to February 2011, isn't being made available in Windows Update.