According to YouTube new Policy, its being restriction in downloading videos from their site. Hence you can only watch at YouTube but that's a big problem for us who download videos at bulk via IDM. The error message you have seen is http error 1.01 . Now to solve that issue and download HD videos as regularly i have a trick mentioned below. Lets have a sharp look.
How to download Blocked YouTube Videos via IDM?
Now to download blocked YouTube videos, you have only 2 methods stated below.
1. Always insert or make your url with https encryption. For ex- https://www.youtube.com/djfjofsi
Enjoy and please comment if you face any difficulty with it.
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