I got mcpatcher again, but when I try to use it, it says ''already used, new jar, RESTART BEFORE NEXT USE''. I don't know how to. This is the first problem. Now, I can't delete my minecraft folder or bin OR jar because it says it is'' open in another folder''. And I can't delete mcpatcher because it says it's ''open in java(TM) Platform SE binary''. I would appreciate some help.