Not very much because they made to be different, because windows vista wasn't all that good. Some things they do have in common are, they both have windows aero. Updated start menu, updated utilities.
No your windows 7 will not deleted
Do you mean upgrade to Windows 7 from Vista? Yes, without a doubt.
Most, if not all of them. Windows Vista was released prematurely. windows 7 is what windows 7 Should have been.
Sorry only for Windows 2000 / XP /Windows Vista /Windows 7
No. Vista Inspirat is a Vista theme for Windows XP. As XP themes do not work on Windows 7, the theme cannot be used as is.
windows 7
Windows Vista, and Windows XP
Windows Calender is included with Windows Vista. It is not included with Windows 7 or 8, but can be copied over to Windows 7 and 8 from Windows Vista.
Windows XP, Vista, 7 and the MAC series
No. Windows 7 is based upon Windows Vista but includes new features, bug fixes, and performance enhancements.
Windows 7
Windows 7.