Native VHD boot is currently supported only on certain versions of Windows and is disabled on other versions of Windows. This article/tutorial shows how all versions of Windows 7 can be installed and booted from a fixed size VHD using a free driver called Firadisk.
In Windows 7, Native VHD boot is currently supported only on Ultimate and Enterprise versions and is disabled by a license policy on other versions of Windows. This article/tutorial shows how Native VHD boot can be enabled on unsupported versions of Windows 7 as well.
Lenovo One Key Recovery stops working when the recovery partition is resized or recreated again.However there is a way to get the NOVO button working again after resizing/recreating the recovery partition.
Windows To Go is a new feature in Windows 8 Enterprise that allows Windows 8 Enterprise to boot and run from USB hard disk and flash drives. However this feature is not limited to Windows 8 Enterprise and can be unofficially enabled in all versions of Windows 7 and 8 by using a tool called WinNTSetup