To resolve this problem you need to take the following steps. This involves making modifications to the registry. If you aren’t comfortable doing this, then you should have a computer technician do it for you.
Step 1 – Click on start
Step 2 – All programs
Step 3 – Run – Then type in regedit in the box and click ok
Step 4 – Go to HKEY_LOCAL_MACHINE
Step 5 – Go to software
Step 6 – Go to Microsoft
Step 7 – Go to Internet Explorer
Step 8 – Go to ActiveX compatibility
Step 9 – Choose first folder in list
Step 10 - Right click on compatibility flags and delete it.
Step 11 – Close everything out
Step 12 – Go to the website and try to play the video again. This should solve the problem.
This happens when malware adds a value to this registry file or it may happen if the file is corrupt due to an update.