I've tried installing the Windows 7 beta as fresh install and as upgrade from Windows Vista. The installation was smooth and it did not take long to see the nearly 3 year old laptop to boot in Windows 7. When I fresh installed Windows 7 on my Dell laptop, all device drivers are installed except the drivers of the built-in webcam and the Ricoh media card reader. Since Dell let me download the driver and software for the webcam, I test by installing and it worked. Windows Update offered updates for NVIDIA graphics card driver and also the driver for Ricoh media card reader. Unlike earlier editions of Windows, a user need to ready or hunt for drivers. Microsoft is now making it sure that Windows 7 will have the widely-used device drivers ready when you install Windows 7 as upgrade or clean-install. I found the below 12 new and enhanced features in Windows 7.
Action Center
The new panel for Windows Security Center is now Action Center. It will display not only the security status of Windows but also the Maintenance status (whether you’ve created a backup already or if there’s any problem device or component in your computer that requires attention). In earlier edition of Windows, the security center icon will only appear if any of the monitored items by security center requires attention. With Action Center, there is a flag 
in the notification area and it will change its status if it finds issue . I like Action Center because it is now integrated to the Problem and Solution section that you can find in Vista. If your device manager reports missing device driver, Action Center will alert you and offer you a solution. Action Center will also provide status if you have not scanned your system using Windows Defender and if a Windows Backup is currently running.
AppLocker
AppLocker a new feature in Windows 7 for System Administrators. Controlling what software can do is no difference in controlling user actions and this method is possible with the help of Application Locking. AppLocker can help prevent malware infection or installation of rogue software in a computer with Windows 7. This feature is one of the features in Windows 7 that I am sure will be very useful to many IT Administrators. Administrators will be able to maintain a list of applications or file extensions (.exe, .msi, .msp, scripts, .dll etc) that are creating problems or software that is bundled with unwanted components. Use AppLocker by adding the unwanted, rogue or dangerous program or the dll files as unauthorized software.
Bitlocker To Go
BitLocker let you password protect your entire drive by encrypting it and this feature was first introduced by Microsoft in Windows Vista. In the upcoming Windows 7, BitLocker To Go is one of the new security features that you can take advantage. You’ll be able to encrypt your Pen, Flash or any portable drives so no other users will be able to access or modify the content. BitLocker To Go is quite useful who want to have complete data privacy and security not only in the system drive but also removable drives. I tried using BitLocker To Go on one of my pen drives and it is so easy to use.
