My laptop was slow when Windows was up and running so restarted it. Login screen was very slow, would type in password and characters would lag. Got into Windows so tried a restart from there. Seems like it shut down OK, but now it is stuck between the Asus startup screen and the Windows login. On hard power restart gets through the Asus screen everytime and then sits. Can hear HDD working occasionally and have a mouse cursor that moves, but rest is a black screen. Can get into BIOS with F2 at startup, but not sure what to do at that point to get a restart into Windows? Ideas?