Hi,
Thank you for sharing your question on Microsoft Community forum.
I would like to inform you that this is a known issue in Windows 8.
The issue is associated with the Fast Startup component.
However, in order to fix the issue I would like you to perform few steps to fix the issue.
Steps:
a. Press Windows key + R.
b. Type in control panel.
c. In control panel click on power options.
d. In the left pane, select Choose what the power buttons do.
**e.**Choose Change settings that are currently unavailable.
f. Scroll down and uncheck the Turn on fast startup.
Reference:
Follow the link:
If you need any further assistance, please reply and we will be happy to help you.