Being on Windows 8’s lock screen will automatically turn your display off after 1 minute regardless of your power settings. Even if you have your screen set to never turn off, the lock screen will override that setting and turn off displays after the minute passes.

To enable the setting under Display for Advanced Power Options, do the following registry change under HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Power\PowerSettings\7516b95f-f776-4464-8c53-06167f40cc99\8EC4B3A5-6868-48c2-BE75-4F3044BE88A7

Change Attributes from 1 to 2

Open the Advanced Power Options for your profile and you will now see the option. Enjoy!

Windows 8 now introduced taskbar options when using multiple displays! You can set it to show all programs, show only those which are active on the display, or just turn the feature off (but WHY would you do that?).

Just found out that if you are running Windows 8 with the Hyper-V Platform installed, some important settings in your “Processor Power Management” section under Power Options go missing. This is because Hyper-V decides to keep your CPU clocked at 100%.

This is obviously bad if you’re on a laptop, since your CPU will no longer clock itself down when not in use, and your battery will drain considerably faster.
Unfortunately, the only way to re-enable power management for your CPU is to uninstall the Hyper-V Platform from the OS. More of a reason for me to keep using VMware then…