The pc shut down and I have external keyboard which is not working (the original one is broken and I used to use the external one). I also unplugged all the usb (mouse,keyboard and sound system). When I turned it on, it started to beep without stop, so I removed the battery, put it on and after I started it, the pc was in recovory mode. Now, I cant press enter to enter in Normal mode because my original keyboard wasnt working, either the external one. Can someone help meee? Thanks a lot in advance.