Slipstreaming Windows service packs used to be a simple process with earlier versions – just run the EXE with a special command-line switch. I can't seem to find such a switch with Windows Server 2008 R2 service pack 1. How do I slipstream it? TechNet mentions "integrated installation", so it's possible, but it doesn't seem to have any details on how to actually do it!
Windows – Slipstream SP1 into Windows Server 2008 R2 installation files
service-packwindowswindows-server-2008-r2
Best Answer
It's messy, so it's usually easier to get a copy of Server 2008 R2 w/ SP1.
You can do it manually. The direction for Win7 are the same.