Hello:
My PC cannot go into hibernation mode and everytime I try I get the
following entry on the Event Viewer:
Source

artMgr
Type:Error
Event_ID 43
Description:
The system sleep operation failed
I tried to change the page file size per Microsoft suggestions but the
problem still remains.
Anyone knows what could be happening?
Thanks
What changes did you make regarding the page file and if you are not
letting the system manage it why not?
Has hibernation ever worked?
Minimize back and forth Q&A and eliminate guesswork and assumptions:
Click Start, Run and in the box enter:
msinfo32
Click OK, and when the System Summary info appears, click Edit, Select
All, Copy and then paste
back here.
There will be some personal information (like System Name and User
Name), and whatever appears to
be private information to you, just delete from the pasted
information.
Here is a method to post the specific information about individual
events.
To see the Event Viewer logs, click Start, Settings, Control Panel,
Administrative Tools, Event Viewer.
A shortcut to Event Viewer is to click Start, Run and in the box
enter:
%SystemRoot%\system32\eventvwr.msc /s
Click OK to launch the Event Viewer.
The most interesting logs are usually the Application and System.
Some logs may be almost or completely empty.
Not every event it a problem, some are informational messages that
things are working okay and some are warnings
No event should defy reasonable explanation.
Each event is sorted by Date and Time. Errors will have red Xs,
Warnings will have yellow !s.
Information messages have white is. Not every Error or Warning event
means there is a serious issue.
Some are excusable at startup time when Windows is booting. Try to
find just the events at the date
and time around your problem.
If you double click an event, it will open a Properties windows with
more information. On the right are
black up and down arrow buttons to scroll through the open events. The
third button that looks like
two pages on top of each other is used to copy the event details to
your Windows clipboard.
When you find an interesting event that occurred around the time of
your issue, click the third button
under the up and down arrows to copy the details and then you can
paste the details (right click, Paste
or CTRL-V) the detail text back here for analysis.
To get a fresh start on any Event Viewer log, you can choose to clear
the log (backing up the log is offered),
then reproduce your issue, then look at just the events around the
time of your issue.