No joy. Same problem. I renamed chkdsk.exe and ntfschk.exe so they wouldn't run at startup, so that's no longer a problem.
Safe mode loads to the point where the screen says Safe Mode in the four corners, but the desktop doesn't load. The hard disk light flashes continuously, like it's running something. The mouse works and the WiFi light is on.
Standard Windows loads the startup screen, but the screen goes black with a (working) pointer...hard disk light flashes as in Safe Mode, but the sign-in screen never loads.