Update process was interrupted because the computer accidentally rebooted. Unable to open Windows. How can I fix this?

[WPCentral Question]

update process was interrupted because the computer accidentally rebooted. uable to open windows.

first I have forcibly upgraded to windows10. but it shows one important update windows 10 pro. I updated successfully but after that it asked to restart. But unfortunately after restarting it shows that computer restarted unexpectedly or encountered an unexpected error, so click on ok bottom to restart. but after doing the for several times also it shows the same error. I am not able to open the windows Kindly help me to fix this problem.