Problems with my laptop starting - Satellite P745, Windows 7

For the past few months I've been having a very strange problem with my laptop. I have a Satellite P745-S4380 with Windows 7. There are times that I can shut it down and turn it on with no problems. However, a majority of the time when I shut my computer down, it will not turn back on. When I push the power button, the following happens:
the power button lights up
the fan starts running
I never see the "Toshiba" screen and my computer does not start
The only way I've gotten my computer to turn back on is to either:
1) unplug my power and let my computer run in this "fan running, power light on" mode until the battery dies - then generally when I plug it back in, it will start right up
or
2) wait 5 to 7 days, then it will start right up
I don't use it on a daily (or even weekly) basis because I am on the computer all day at work, but I would have to guess this started around June. I'm trying to determine if this is something like a motherboard failure, or if it's some sort of software/hardware update that is not setting well with my machine. Has anyone else had this issue? Any ideas on things to even try troubleshooting? I think it may be related to an update or setting (maybe because I don't want it to be the motherboard) because even if I go to reboot it at times, it will shut down but will not come up and it will get hung in the same state as I described above. If my motherboard is bad, would it act like this? I'm at a loss with where to even start...
Something else to mention is that if I put it in "hibernate" mode, I haven't seen this issue.

Hi ! There are many discussions about whether you should shut your PC down or just leave it run. I never allow my PC to go into sleep or hibernate mode. I allow my monitor to shut down after 15 minutes of no activity. I turn my wireless mouse off when I'm done with my PC. When I return to my PC, I turn my mouse on and my PC starts up immediately. That is the way I use my lap top. It's a choice for you to make. I have no proof it it is good or bad practice. Of course this would need to be changed if your operating only on battery.
Dokie!!
http://www.howtogeek.com/128507/htg-explains-should-you-shut-down-sleep-or-hibernate-your-laptop/
I Love my Satellite L775D-S7222 Laptop. Some days you're the windshield, Some days you're the bug. The Computer world is crazy. If you have answers to computer problems, pass them forward.
Attachments:
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Hi ! There are many discussions about whether you should shut your PC down or just leave it run. I never allow my PC to go into sleep or hibernate mode. I allow my monitor to shut down after 15 minutes of no activity. I turn my wireless mouse off when I'm done with my PC. When I return to my PC, I turn my mouse on and my PC starts up immediately. That is the way I use my lap top. It's a choice for you to make. I have no proof it it is good or bad practice. Of course this would need to be changed if your operating only on battery.
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http://www.howtogeek.com/128507/htg-explains-should-you-shut-down-sleep-or-hibernate-your-laptop/
I Love my Satellite L775D-S7222 Laptop. Some days you're the windshield, Some days you're the bug. The Computer world is crazy. If you have answers to computer problems, pass them forward.
Attachments:
Capture48.JPG ‏146 KB

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Problems with my laptop starting - Satellite P745, Windows 7

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