Corrupt user plus I cannot use my safe mode

Hello all. First of all, excuse my english.
I am having troubles with my Lenovo. I got the "user failed to log in" error. I read a few articles, according to them I have to boot in Safe Mode and create a new account or fix the old one. The problem is first of all that to access Safe Mode its not so easy. If I try to start the laptop, even if I press constantly F8 usually its just going straight to loading the windows and my corrupt user. I have to get out the battery, plug it in again and then start the windows and tap, tap, tap F8 until I go to the menu for Safe mode. So far, so good, but when I press safe mode, after everything loads I receive a screen with my user, I am putting my password in and when I get in…the Safe mode is empty…its not the black screen thing, there is a tool bar and everything, but when I try to search anything there is just nothing…like nothing there….so I cannot proceed with the explanation tutorial because I cannot find neither the command prompt, nothing. I try to go to control panel and just create a new profile, but it doesn't let me, even though it says that my account is the administrator account…I am getting really confused, can you please help because I really don't know what to do anymore.

Thanks.


I can put some screenshot if my explanation is not enough


Thanks in advance

Welcome to the forum when you press f8 one option should be fine prompt were you can create a new user. While at the prompt check the drive for errors by typing Chkdsk c:/ f