Last night I noticed my Internet was a bit slow at times on this computer. I tried to run Malwarebytes but the update gets stuck. Also means I cannot do a scan, because the first step is to updated (is there a way to scan without initial update?). I have uninstalled it, used the malwarebytes removal tool (mbam-clean-2.1.1.1001) and reinstalled, with no luck. I am trying in safemode now, but no change, I have run Avast! and the Microsoft Windows Malicious Software Removal Tool. Neither find anything. Loading some pages is fast as normal, but others get slow. Wife's computer normal - on BT Infinity and speed checks still show usual speeds of 37Mbps Any idea what might be wrong, and what I can do to fix it?