Getting blue screen error with "video scheduler has encountered an unexpected fatal error" message

Nicholas

Auggy's suggestion relates to Windows 7 not Vista.

What appears in Event Viewer?

1. Normally when an error occurs on your computer looking in Event Viewer should be your starting point for finding a solution. Most system related errors are logged and getting an exact copy of the relevant report is important. Unfortunately understanding the reports is not easy and most computer users need help with their interpretation. I have more to say later on interpretation.
2. Event Viewer comprises three main Windows logs. These are Application, Security and System. For troubleshooting purposes System is by far the most important.
3. To access the System log select Start, Control Panel, Administrative Tools, Event Viewer, from the list in the left side of the window select Windows Logs and System. Place the cursor on System, right click and select Filter Current Log. Check the box before Error and click on OK and you see only Error reports. Click on the Date and Time Column Header to sort. You may need to click a second time to see the latest Report at the top.
4. A tip for posting copies of Error Reports! Run Event Viewer and double click on the error you want to copy. Select the Details tab and check the box before XML View. Click on the Copy button to place a copy on your Clipboard and close Event Viewer. Now start your message and paste into the body of the message. Make sure this is the first paste after exiting from Event Viewer.
5. There are three types of Report, being Information, Warning and Error reports. In most situations it is Error Reports that offer the best information but occasionally Warning Reports provide useful clues.
6. All reports have date and time stamps and when troubleshooting it is important to concentrate on more recent reports. Study reports since the point when the computer was last booted and then check whether a similar report appeared in the previous session. If errors do not repeat investigation as to why they occurred is wasted effort.
7. Within individual reports the more important information is Event ID and Source as these help when looking for help on the internet. The description is equally important and copying the exact text for use as the search criteria greatly helps getting better results when using Google. Do not paraphrase descriptions when asking others for help.

I'm sorry but I cannot find this "Action Center" anywhere.

Try here (for Windows Vista):

Start > Control Panel > System and Maintenance > System >  Performance > Problem Reports and Solutions > View Problem History

You can also check the Event Viewer as suggested by Gerry C J Cornell.

When I go to Control Panel there is no "Administrative Tools".

The latest problem report is from yesterday from when I got a blue screen:

Description

The Windows User-Mode Driver Framework detected that a driver host-process did not exit when directed to do so. 

This report contains information about the process and the drivers running within and will be used to improve the quality of these drivers.

Problem signature

Problem Event Name:    WUDFHostProblem

EventClass:                      HostProblem

Problem:                           Other

DetectedBy:                      3

UMDFVersion:                  6.0.6001.18000. (longhorn_rtm.080118-1840)

ExitCode:                          103

Operation:                         0

Message:                          0

Status:                               5b4

OS Version:                      6.0.6002.2.2.0.768.3

Locale ID:                         2057

Files that help describe the problem

WUDFTrace.etl

WudfHost_2988.dm.config.evtx

memory.hdmp

minidump.mdmp