These solutions from Microsoft may do the trick, they worked for me.
Step 1: Click Start and type
cmd in the search field. Right-click
cmd under the Programs list and choose
Run as Administrator. Accept the UAC prompt.
Type
powercfg /RestoreDefaultPolicies then press Enter to run the command.
Type
Exit then press Enter again to close the Command Shell.
Step 2: Next, click Start again and navigate to Control Panel>System & Security>Action Center>Troubleshooting.
In the
Troubleshooting window, under
System & Security, click
Check for Performance Issues then follow the Wizard's instructions for disabling Startup applications
. Step 3: Download the free edition of
SuperAntiSpyware and carry out a virus scan. Remove any viruses or Adware and restart your computer then check the status of the issues found.
When you've finished, uninstall SuperAntiSpyware in Uninstall a Program and any non-Microsoft anti-virus software you may be using. To remove the third-party anti-virus applications, click
Start then click
Run and type
appwiz, and then press
Enter.
In the list of installed programs, uninstall any anti-virus application other than Microsoft Security Essentials.
You'll probably find it better to create a system restore point before you start then restart your computer when you've finished.