hello everyone, i have the same problem right now, my Lenovo ideapad 100s wont allow me to enter any letters in the password box, i already tried this step,,,,bottom right, there are 3 icons.
The one on the extreme right is the Power icon > left click at it will give you a Restart option.
Press Shift key and hold > click Restart > if asked, click Restart anyway > click Troubleshoot > click Advanced Options > click System Restore > wait for the system to load >
but they ask for the recovery keys, which i know and i have , the problem now is that i cant input it in the box again for the recovery key box they provided.huhuhuhu