Windows7

Looking at the title,its not Window7 that i want to blog about.

i wanted to upgrade my lame vista, to windows7. And i've done it. But, the bad news is, all files that i had stored in the external hard disk (which means ALL FILES; my final project, assignments, pictures etc) are now gone. The external hard disk have to be formatted as it looks like some error/function failure has occurred...sioLLL!!!
Not only that, but it has decreased the performance of my laptop( it is said that windows7 is much lighter, smaller and easier to use rather than vista)..LOMBAB !!!!!