My Windows 8 is stuck on con-fig, wont let me do anything for a full day. Is their anything I can do, besides trying f-8 or re

[Phyllis_7]

My comput3r has been stuck on configuring windows, do not turn off computer and it wont show anything else for a full day. I tried turning off anyway and it goes right back to this blue screen. I tried.pushing the F-8 button but nothings working. Is there any hope? I have a Windows 8 Lenovo around 3 years old. I just recently took it to be cleaned. Now this is happening.

 

[Phyllis_7]

Please someone help me with my Windows 8 Lenovo computer. It wont stop saying Failure configuring Windows features reverting changes all day. It wont show anything else. It started with updating Windows and after it was 15% into it, it froze to failure configuring window. Ive tried using f-8 and turning it off. How do I put it in safe mode when I can't get this off my screen? Someone please help me.