

921,504
Without the CODEC you are CODONE.
Cycle through a power off reboot.
Success? Yahoo.
Failed? Continue.
Then reload software separately then individually load online updates.
If not successful, find a comfortable chair and make the call.
Based on your knowledge of activity on your puter recently, you may consider installing a previous restore point.
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David Alan Baker | Lav...
Laveen, AZ
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Switch to Mac and use iMovie or Screenflow. Otherwise - consider Camtasia for PC
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Sorry David. I use a Mac. Final Cut Pro X does an excellent job with green screen. Your lighting is key. Study as much as you can about lighting effects.
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There might be an answer on the microsoft.com support site or another support site. Try Binging your question.
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When I have heard about CODEC missing errors a reinstall may be the fix. I would Google your questions.