This enables organizations to deploy a single set of updates. We selected a 16 GB flash drive for the purpose, but an 8 GB would be enough for a single language Windows 7 setup. Launch Rufus and then select the drive in which you want to create the bootable. It also provides ongoing improvements to the Windows Operating System (OS) by including previous updates delivered over Windows Update and continuing incremental updates to the Windows 7 platforms based on customer and partner feedback. Copy the files from your USB drive to avoid data loss. Windows 7 SP1 helps keep your PCs and servers on the latest support level. Installing SP1 helps keep Windows 7 up to date. SP1 also includes new improvements to features and services in Windows 7, such as improved reliability when connecting to HDMI audio devices, printing using the XPS Viewer, and restoring previous folders in Windows Explorer after restarting. Windows 7 Service Pack 1 (SP1) 64-Bit is an important update that includes previously released security, performance, and stability updates for Windows 7.