My asus laptop won't let me sign in it says to use the last password used on this device and I've never changed my password. My touchscreen won't work either, everything worked fine the other day when I used it.
Few things you can do:
- Start by trying it in Safe Mode.
- If it doesn't let you login still I would suggest contacting Asus Support about password related concern.
- http/www.asus.com/support/