Hi,
Please do try these troubleshooting steps that may help.
- First is to do a hard reboot, remove the battery and unplug the AC adapter then press and hold the power button for 20 seconds then try logging in again.
- If the same problem will persist do try logging in to Safe Mode.
- While the laptop is booting up, repeatedly press on F8 until it loads Advanced Boot Options then select Safe mode.
- If it will let you login in Safe Mode I would suggest doing a System Restore.
- Here's how:
http
/windows.microsoft.com/en-PH/windows-8/restore-refresh-reset-pc
- But if it will still not load in Safe Mode I would suggest contacting ASUS support first about password related concern.