EnergySettings¶

Requirements¶

To setup energy-settings you will need the following:

• a installed and supported operating system (e.g. Windows 7)
• administrator rights

Preliminary Note¶

It might not be necessary but it seems that Windows 7 randomly hangs when trying to do some energy-saving on the virtual machine hardware supplied by VirtualBox. This behavior has been especially reported with VirtualBox 4.0.2. As there is no good reason to switch off virtual harddisks and displays anyway, we do it regardless of the VirtualBox Version.

Setup¶

• open start-menu and select Control Panel
  
• goto Hardware and Sound
  
• goto Power Options
  
• goto Create a power plan
  
• select High performance and type in as new Plan name: FullThrottle, so everyone knows what we are aiming at
• select Next
  
• select Never and Create afterwards
  
• We can't change the details right away, so we choose our new plan FullThrottle and goto Change plan settings
  
• Now we goto Change advanced power settings
  
• select Hard disk / Turn off hard disk after / Setting and enter 0, this will result in never
• select USB settings / USB selective suspend setting / Setting and choose Disabled
  
• close the form with OK
• for some unknown reason we don't get Save changes, so we just close the window

4 Check functionality¶

reboot the machine and check if the energy plan FullThrottle is active and all settings are as set before