delmar84 :
I've already tried cntl/alt/delete to open task manager. No success. What do I try now?
Sounds like you somehow changed the boot order or else your boot manager is corrupt. Go into BIOS and see what is listed for your boot order. Set the boot order to start from CD and save changes. Insert your win7 disc, reboot, and do a repair install. That will correct the boot manager file so that your pc starts correctly.