The analysis will take 60 seconds (which you can change with the optional - duration switch), after which powercfg will save its report as an HTML file on your desktop. Just double-click output.html to view the report.
powercfg -energy -output %userprofile%\desktop\output.html
Enabling this setting will prevent Windows from paging certain system processes to disk
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management
DisablePagingExecutive // Values: 0 = disabled (default), 1 = enabled.
LargeSystemCache // Values: 0 = standard (default), 1 = large.
Temps to clean: Out of the box, Windows 7 uses up to four Temp folders:
C:\Users\{your_user_name}\AppData\Local\Temp
C:\Users\Default\AppData\Local\Temp
C:\Windows\Temp
C:\Windows\winsxs\Temp
To delay background services, open the Services window (services.msc)
set the Startup type to Automatic (Delayed Start)
Perform a Sleep test
http://www.passmark.com/products/sleeper.htm and download the free PassMark Sleeper tool
Open
gpedit.msc
→ Local Computer Policy
→ Computer Configuration
→ Administrative Templates
→ Windows Components
→ Application Compatibility
Turn Off Program Compatibility Engine. // set to Enabled
Turn Off Program Compatibility Assistant. // set to Enabled
Remove Program Compatibility Property Page. // set to Disabled