I accidentally delete Registry Key, now can't log in to my system!

[KatieB]

Hello!

I made a big mistake - I wanted to delete one file, but accidentally delete Registry Key and now I don't even know which one. I tried to restart my computer and then realized that I can't log in to my system - I can turn on my computer, it loads, but then I see just a blue screen and I don't have an option to write my password, I can't see "Welcome" sign, because there's nothing, just a blue screen. I tried Safe Mode, tried restore points, but nothing works for me, because when I try to restore my system, it gives me 0x80070002 error. What I can do to log in to my computer if there's no option to do it? :/

Sorry for my English, isn't my native language. And sorry for my stupid questions. :/

With love,
Katie

 

[RolandJS]

What were you trying to delete? Perhaps if we know where you wanted to go -- we can maybe possibly help you get back the key you accidentally deleted.

 

[samuria]

Did you export key first as a backup?