The Event Viewer
by Vino Rosso is free and can help look at system event logs for error messages and other information that may be pertinent.
Save to the Desktop
Right-click the icon on the Desktop (VEW.exe), and select: Run as Administrator
at the User Account Control (UAC) prompt.
At the VEW program console:
In the Select log to query section
In the Select type to list
Critical (not XP)
In the Number or date of events
Number of events
in the 1 -20 box
Now, press the Run
A Notepad report opens on the Desktop when the program is done.
You may want to post it here for other eyes to look at.