Faster, more responsive performance - Nobody likes to wait. So Microsoft have focused on the basics that can impact the speed of your PC. Windows 7 starts up, shuts down, resumes from standby, and responds faster. You'll have fewer interruptions and can recover more quickly from problems when they do occur because Windows 7 will help you fix them when you want.
DirectAccess: Give mobile users seamless access to corporate networks without a need to VPN.
BranchCache: Decrease the time branch office users spend waiting to download files across the network.
Federated Search: Find information in remote repositories, including SharePoint sites, with a simple user interface.
BitLocker and BitLocker To Go: Help protect data on PCs and removable drives, with manageability to enforce encryption and backup of recovery keys.
AppLocker: Specify what software is allowed to run on a user's PCs through centrally managed but flexible Group Policies.
Virtual desktop infrastructure (VDI) optimizations: Improved user experience for VDI with multimon and microphone support, which have the ability to reuse virtual hard drive (VHD) images to boot a physical PC.
Multilingual user interface: Create a single OS image for deployment to users worldwide.