Your computer runs Microsoft Windows 2000 with Service Pack 3.<br /> You need to upgrade your computer to Microsoft Windows Vista. You must achieve this goal without reinstalling the applications.<br /> What should you do?()<br /> <img src="https://nimg.ppkao.com/2018-07/gelingxia/2018073114290033269.jpg?sign=25e4b8dbc627cc914757561614a42b7a&t=62d0b383" />
A、A
B、B
C、C
D、D