Advanced Startup Options in Windows 8

Yesterday my laptop become unusable state,while trying to make a change in the registry.as a result of this,it took a start up error.So I peep into recovery method using Advanced Startup Options in Windows 8.Here I am going to give you a brief discussion of those options.

The quickest way to start Advanced Startup Options is from PC Settings -> General -> Advanced startup

Refresh your PC is available from the Troubleshoot screen and says If your PC isn't running well, you can refresh it without losing your files.Your saved files, personalization settings, and Windows Store apps all remain. Any non-Windows-Store installed programs will be removed and PC settings will be defaulted.

Reset your PC is available from the Troubleshoot screen and says If you want to remove all of your files, you can reset your PC completely.the process of removing all of the apps, programs, and data from your computer.

System Restore is available from the Advanced options screen and says Use a restore point recorded on your PC to restore Windows.For example, if you suspect some driver or registry issue is preventing Windows 8 from starting properly, but find yourself in the unfortunate situation of not being able to start Windows to then start System Restore, this option becomes very valuable.

Command Prompt is available from the Advanced options screen and says Use the Command Prompt for advanced troubleshooting.Most commands that are available from the Command Prompt in Windows are also available in the Command Prompt included here as part of Advanced Startup Options.

references:
http://pcsupport.about.com/od/termsag/tp/advanced-startup-options.htm