Hi S Prashanth,
Thank you for posting the query on Microsoft Community.
Let us try the methods below and check if it helps.
Run the Power Troubleshooter.
Power troubleshooter will automatically fix some common issues with Power Plans. Run the Power troubleshooter to adjust your computer's power settings. The Power troubleshooter checks things like your computer's timeout settings, which determine how long the computer waits before turning off the monitor display or entering sleep mode. Adjusting these settings can help you conserve power and extend your computer's battery life.
- Press Windows key + W and type Troubleshooting.
- Select Troubleshooting and click on System and Security.
- Click on Power and follow the onscreen steps.
Let’s change the power plan settings to use minimum processor state to prevent overheating.
Follow these:
a) Press Windows and X key together and select Power options.
b) Click on Change plan settings for the power plan that you have set on the laptop.
c) Go to Processor power management. Expand the icon and expand maximum processor state.
d) Reduce the processor state (for both Plugged-in as well as On battery) to a certain level to verify if it makes any difference.
e) Click on Apply and then OK.
You can also try with maintenance troubleshooter, follow these steps:
- Open the Maintenance troubleshooter by clicking the Start button, and then clicking Control Panel.
- In the search box, type troubleshooter, and then click Troubleshooting.
- Under System and Security, click Run maintenance tasks.
Power plans: Frequently asked questions
http://windows.microsoft.com/en-US/windows-8/power-plans-faq
Then try Clean Boot as well.
This helps eliminate software conflicts that occur when you install a program or an update or when you run a program in Windows. It starts Windows by using a minimal set of drivers and startup programs.
How to perform a Clean Boot in Windows: http://support.microsoft.com/kb/929135
Note: After troubleshooting, refer to this section "How to reset the computer to start normally after clean boot troubleshooting" in the above link.
Hope this helps in resolving the issue. If issue persists, do get back to us. We will be happy to assist you.