Solution to Error: Computer shuts down instead of going to sleep mode

Computer shuts down instead of going to sleep mode

Recently (within the past week or so) my computer  has begun shutting itself down instead of going into sleep mode.
It also seems to have trouble turning itself off and often when I boot it back up in the morning it gives that "unexpected shutdown" screen
even though I tried to shut it down properly.
I originally thought I might have a virus or that it might be something I had downloaded, but a cursory glance at Google and this website leads me to believe that this is a problem others have encountered.
How
can I fix this?

Anwsers to the Problem Computer shuts down instead of going to sleep mode

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Hi,
1.       Have you made any recent software changes on your computer?
2.       Have you updated the display drivers?
3.       What is the make and model of the computer?
Check for the exact error message that you get for this in the Event Viewer:
What information appears in event logs (Event Viewer)?
http://windows.microsoft.com/en-US/windows7/What-information-appears-in-event-logs-Event-Viewer
Refer this link to Open the Event Viewer:
Open Event Viewer
http://windows.microsoft.com/en-US/windows7/Open-Event-Viewer
Method 1:
I would suggest you to run the performance troubleshooter and check.
Open the Performance troubleshooter
http://windows.microsoft.com/en-US/windows7/Open-the-Performance-troubleshooter
Method 2:
I would suggest you to visit manufacturer support and get the latest display drivers installed.
You may check if updating the display driver assists you –
 
 For updating the drivers you may refer to the below mentioned link and use the steps provided accordingly -
http://windows.microsoft.com/en-us/windows7/Update-a-driver-for-hardware-that-isnt-working-properly
 
Method 3:
I would also suggest you to change the settings in the Power Options
a.
Open Power Options by clicking the Start button, clicking Control Panel, clicking
System and Maintenance, and then clicking Power Options.
 b.
On the Select a power plan page, click Change plan settings under the
selected plan.
c.
On the Change settings for the plan page, click Change advanced power settings.
d.
On the Advanced settings tab, expand Power buttons and lid, click on Power button action.
e.
Click on Setting, select the option Sleep.
f.
Click on Ok.

To check for Windows updates. Open Windows Update by clicking the Start button , clicking All Programs, and then clicking Windows Update. In the left pane, click Check for updates, and then wait while Windows looks for the latest updates for your computer. If any updates are found, click Install updates.

Install the latest updates for Windows and for the program displaying the error. Note that the update for the program might be listed as an optional update on the Windows Update page.

Open Windows Update by clicking the Start button Picture of the Start button. In the search box, type Update, and then, in the list of results, click Windows Update.

Another Safe way to Fix the Problem: Computer shuts down instead of going to sleep mode:

How to Fix Computer shuts down instead of going to sleep mode with SmartPCFixer?

1. Download SmartPCFixer . Install it on your computer.  Click Scan, and it will perform a scan for your computer. The junk files will be shown in the list.

2. After the scan is done, you can see the errors and problems need to be repaired. Click Fix All.

3. The Fixing part is done, the speed of your computer will be much higher than before and the errors have been removed.

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