Suddenly Can't access certain websites

Hello All, I have looked at the other posts on this but can't find a cure, the problem is that I suddenly can't access certain sites, notably youtube. I did make some changes, I updated Java
also I found my 240gb ssd was nearly full, I am using Adobe premiere Pro which stores it's cashe files on the C:drive so I found the folder where they were kept and deleted them after taking advise from the Adobe forum. It was only later in the day that I noticed my problem so I don't know if they are related

I found it myself ir was a google add on chromframe bho that I had to disable

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