1) USB sound card adapter is pretty good. I bought one and it is working. Thanks 当时冬心的介绍!
2) Can I just delete some bad Win 7 files from a partition instead of " uninstall",
because this is not my system partition and I don't know how to uninstall Win 7.
3) I paste some programs files to my system's drive ( C:\)which I am operating now , but I
couldn't find them on "program" or control panel's " programs" I don't know why?
Thanks!