Windows 10: Registry Error and Unable to use password to system restore, reset, etc.

Boot up my windows 10 activated PC recently to get hit with a registry error. When I go into advanced troubleshooting, every option requires my password in which I continually get "Password is incorrect" even though I can log into my Microsoft account on other devices. So currently I am unable to run a command prompt, restore, or reset my PC to get past the registry error.

:)

 

Registry Error and Unable to use password to system restore, reset, etc.

Boot up my windows 10 activated PC recently to get hit with a registry error. When I go into advanced troubleshooting, every option requires my password in which I continually get "Password is incorrect" even though I can log into my Microsoft account on other devices. So currently I am unable to run a command prompt, restore, or reset my PC to get past the registry error.

 

How to reset Windwos 8 Password?

http://windows.microsoft.com/en-us/windows/what-do-forget-windows-password#1TC=windows-8

• If you've forgotten your Windows password, there are several ways to retrieve or reset it:
  • If your PC is on a domain, your system administrator must reset your password.
  • If you're using a Microsoft account, you can reset your password online. ...
  • If you're using a local account, use your password hint as a reminder.

 

If a system restore restores the registry to how it was before, then how come a trial version of a program does not reset?

I do the following in the given order:

1. Create a system restore point. There is a note of what the registry looks like
   
2. Download a program which has a trial of X days
   
3. When that trial runs out, use system restore to return to the previous point before the program installation
   

After these steps, the trial for the program does not reset, even though the registry returned to how it was before. Why is this?