Windows® XP® Mode for Seamless Upgrade
Windows 7 users who have been using XP are particularly exposed to issues regarding compatibility. Though no seamless upgrade is there from Windows XP to Windows 7 but Microsoft has provided the consumers with Windows XP Mode to make the transition smoother. Windows XP Mode is fast and easier to use.
XP Mode virtualization can calm the pain of transition from Windows XP to Windows 7. Launched after three years of Windows Vista, Windows 7 is considered to be a win but there are certain drivers and software updates that do not work with Windows 7. Users who have held on to Windows XP are particularly exposed to compatibility issues; which is why Microsoft has created XP Mode virtualization.
XP Mode is a licensed copy of Windows XP with Service Pack 3 constituted in a virtual hard disk (VHD) that runs under Windows Virtual PC. With Windows XP Mode, you can run Windows XP within Windows 7. USB devices can be added and you can consistently access drives on the host Windows 7 system. What you should notice is that Windows XP Mode allows you to use Windows 7 by offering you a platform to use legacy hardware that is not compatible with Windows 7.
Windows XP Mode is not available in all the versions of Windows 7. Only Windows Professional, Ultimate and Enterprise versions provide you with XP Mode. The components which are required for Windows XP Mode are built in to the operating system, but Windows Virtual PC and Windows XP Mode have to be downloaded separately. Although Windows Home Premium users can not use Windows XP Mode but if they want to create their own virtual computer environment, it can be done using Windows Virtual PC.
Note : The computer hardware that you will install on Windows 7 and Windows XP Mode must support hardware-assisted virtualization.