This is a computer I have put together which was running Windows 7 and has been upgraded and running Windows 8 for two weeks with no problems. When I went to review the advanced power settings nothing happens when I click on the link for change advanced power settings. You can see the screen flash very quickly but the power options dialogue does not appear. Any idea what applet runs this dialogue so I might try running it manually? Any ideas on troubleshooting this? Thanks for any insight.