Click start>administrative tools>event viewer (also in control panel>administrative tools) Once you’re their, click on the "View Tab"-Add/remove columns-make sure date,time,type, source,category, event columns are visible, newest first,
In left pane, click any entry. In rite pane, rite click any entry, select properties and it will give you an error message or information message. Look for similarities between them for a clue as to what might be causing the problem.
Once you are in a properties box, you can scroll through the properties of all messages using the up/down arrow buttons. When you find the suspicious errors, click the button that looks like two pages – the error message will be copied. Paste it into your post if you need more help with the error