Why doesn't my computer recognize DVDs after installing updates?

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Please read the Microsoft Knowledge Base article linked below related to this topic :

Microsoft Knowledge Base Article for Upper & Lower Filters

To remove these entries, you may follow the instructions below.

  • Download this file
  • Unzip the file to your desktop by opening the '.zip' file, and dragging the U_L_Filters.reg file to your desktop
  • Run the U_L_Filters.reg file
  • Allow the file to modify your registry
  • Reboot

Your CD-ROM should now be functional again.