I have Vistas premium home 64 bit. Two days ago I noticed that my computer was running very slowly and freezing up. I did a scan with Malwarebytes free version as usual and it found 20 PUP opt.b infections which I removed. I then restarted the computer and found that when I clicked on Internet Explorer I could not connect to any websites at all including Outlook, Facebook, Ebay, Google nothing at all! So then I went back and found the list of items I had removed as a result of the scan and restored them all. Then Internet Explorer WOULD connect to the websites again. I did another scan and this time I removed all the PUP infections except for the ones that were found in memory, registry but after restarting I once again could not get to any websites at all. So again I restored all the PUP infections. Since then I can still get to websites but not all: I can't get to Bleeping Computer or any help type of forum which has helped me in the past. The last scan I did still contains all the infections because I was scared to remove them after that and my computer continues to run very slowly. I really need help in easy to follow instructions.