Applies to:

Windows 7 Service Pack 1 (SP1)

Windows 7 RTM

Windows Vista Service Pack 2 (SP2)

Windows Vista Service Pack 1 (SP1)

Windows Vista RTM


For IT administrators, OEM’s and ISV’s, you can read the details from these two whitepapers:


Windows On/Off Transition Performance Analysis


Windows On/Off Transitions Solutions Guide


The tools that you need to troubleshoot these, is called Windows Performance Toolkit (WPT better known as XPerf and XbootMgr).  The toolkit can be downloaded from:

Windows Performance Analysis Tools

Note:  It does require understanding of Windows Internals.

Windows Internals 5th edition by Mark E. Russinovich and David A. Solomon with Alex Ionescu