Having problems with a very slow restart on my desktop. As part of my trouble-shooting, I look at the Task Manager start-up tab. All but 2 of them are showing as 'not measured'. I know that all the programs start (eventually) since they show up on the task bar etc.

To find out what is affecting the boot please follow these

Install the WPT (windows Performance Toolkit) http://social.technet.microsoft.com/wiki/contents/articles/4847.install-the-windows-performance-toolkit-wpt.aspx

Open a CMD prompt with administrative rights (right click it>run as admin) and run this command for 60 secs to capture the high cpu usage:

It will reboot your computer so save all your data before you do the below As normal it is always a good idea to create a restore point &/or back up your data.
xbootmgr -trace boot -traceflags base+latency+dispatcher -stackwalk profile+cswitch+readythread -notraceflagsinfilename -postbootdelay 10