My computer won't wake up after I shut the lid/went into sleep mode?

Programming
Tutor: None Selected Time limit: 30 Days

My computer won't wake up after I shut the lid/went into sleep mode? 
Not only does it not wake up after opening the lid then hitting keys on the keyboard or moving/clicking the keypad, but when I shut it down the power button remains on but I can hear the fans turn off. I then have to hold down the power key until it turns black, it doesn't mess up my computer or anything, just turns it off all the way. 
Anyways, I don't know what wrong. I've tried everything... Keyboard>Hardware Tab>Properties>Change Settings>there is no "power management" tab, so I can't check my keyboard to be correct. The only solution I've come up with is setting the settings to be once I close the lid my computer does nothing but the screen turns black and when I lift it back up it resumes, but that is not sleep mode, it's set to "do nothing". That wastes a ton of battery in my computer so I have to shut it off every time I get off my computer which is really annoying and time consuming. I really need some help! My computer is a Dell Inspiron 15R. If you have any suggestions please please please post them! Thanks so much! - Brooke
Nov 30th, -0001
use this updates at your own risk
update in this order.
Link for BIOS: http://dell.to/UmY8yD
Link for Chipset driver: http://dell.to/QHpdvi
Link for Notebook system software: http://dell.to/QSdomf
Jul 1st, 2013

What do those updates do? 

Jul 1st, 2013
bios and chiset
Jul 1st, 2013

Sorry, but what are those?

Jul 1st, 2013
driver updates for you notebook.
Jul 1st, 2013

My notebook as in my computer?

Jul 3rd, 2013
yes
Jul 3rd, 2013

So my computer isn't waking up because it's not updated?

Jul 3rd, 2013
Thats just the start. There could be more like hardware damage, but hopefully not. Anyway, start by updating the system  first. hopefully it's an easy fix!  We'll see
Jul 3rd, 2013


Jul 3rd, 2013

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Nov 30th, -0001
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Nov 30th, -0001
Dec 9th, 2016
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