I've been called on to fix an issue on my mother's computer. It is not allowing her to access certain common websites. It's the same way in Chrome/Firefox/Edge. I thought it might be a malware issue and I did find and remove Adaware Web Companion which had found its way onto her system. It did not alleviate the issue however. I ran HitManPro on the system but it only found cookies. I'm a bit stumped as to what the issue is and what to do about it. Has anyone any suggestions?