If your server lacks a DVD drive, you can use a USB flash drive to install Windows Small Business Server 2011 Essentials.
You will need a flash drive with more than a 4 GB capacity, so an 8 GB flash drive works very well. If you are purchasing a flash drive for this installation, get the fastest one you can find.
Using the Windows 7 USB/DVD Download Tool involves downloading a piece of software from Microsoft, running it, and selecting the source material—in this case, an SBS 2011 Essentials installation DVD ISO image.
Even though the tool is called the Windows 7 USB/DVD Download Tool, it can be used to create a bootable USB flash drive for any Microsoft operating ...