system
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Hi, Many thanks for this 
Here is the (Attached) OTL report after doing everything you suggested above.
As for taking a screen shot of the alert message this is difficult as it only pops up on the odd occasion like about once every few days. But i will try to grab it next time… What happens mainly is when i try to open a page or enter a url i just occasionally get a random page of malware appear… the only pattern with this is that it happens several times a day.