i m phasing problem when i m shutting down the laptop its not complatily shut down the fan and power butten is on but the hdd is shutting down

Kindly go through the following threads:

Windows 8 shut down problem

Can't shut down Windows 8 anymore!

dit you reinstall the chipset driver?

Hi risingsunankur,

When did the issue start to occur? Have you made any modifications to the machine before?

To troubleshoot whether this issue is caused by a third party service, we can perform a clean boot to have a troubleshoot.
How to perform a clean boot in Windows
https://support.microsoft.com/en-us/kb/929135

Please check the Event Viewer for any related errors or warnings to troubleshoot this issue.
Event Viewer\Windows Logs\Application, System

To troubleshoot this issue deeply, we can try to work with the Windows Performance toolkit.
Here is a link for reference:
Windows performance recorder
http://answers.microsoft.com/en-us/windows/wiki/windows_other-system/windows-performance-recorder/a1648e8c-50c7-4243-9f1d-4216385c7ff3

Best regards

thanks for reply but the problem is same actually in my laptop has preinsatll the windows 8 and i have upgrade to 8.1 after installation of 8.1 my laptop was working fine about 2 months but after this i am phasing this problem plz provide me the solution it is very big problem for me and i cant take the risk to reinstall the operating system thanks

Hi risingsunankur,

Have you tried the suggestions as I posted to have a check? Is there anything recorded in the Event Viewer?

If the issue persists, we can try to work with the Windows Performance toolkit to capture the shutdown process. Then upload the file to OneDrive and paste the link here.

Best regards