[NF] Missing codec - This item was encoded in a format that's not supported

Hi all

I have a number of AVIs which I recorded for training purposes a long time ago (probably when running Windows 7). Now, when I try to play these AVIs I get the message as in the subject. Now running Windows 10 (2004). Any ideas where/how I can install a codec which will enable them to play? Many thanks.

Paul Newton

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