Sluggish Performance after Restart

My computer's performance is very sluggish after my computer reboots. Before I reboot, my computer is running fine. And this isn't just after I install a program, it's everytime I restart the computer. Starting with the logon screen where I choose which user to login as, the loading is very slow. So, I am forced everytime I need to reboot to shut down my computer, let it rest 5 minutes, then turn it back on. It isn't as sluggish then. And also it seems the performance after I reboot is very sluggish at the beginning, but after I let it load for about 10 minutes it's a little faster but still not as fast as if I shut down my computer and let it rest for 5 minutes, or just leave it on all the time. When I look at the Task Manager and look at the performance tab right after I restart, the CPU usage is at 100%? Any help to make rebooting not slow my computer performance down once I boot up is appreciated. Thank you!

 

bump?

 

click on the processes tab in Task Manager and see what is useing 100% off cpu and post back

 

Okay, but what does it have to do with my computer being slugish after reboot?? If it was the programs problem wouldn't it happen on every startup, not just when I reboot? I'll edit post when I get a chance to reboot and see what's happenin.

 

Whatever was open was taking up the CPU usage. Like task manager was when i was checking CPU uasage