Apart from the fact that my Firefox freezes if I leave it on too long (closing and restarting seems to give a temporary fix), I've now noticed an internet window seems to open by itself most days entitled 'Sponsorship' and, apart from one window saying 'Microsoft partner', they all contain warning messages stating that this, that or the other need urgent updating - so 'click here' in order to do so. No problem in closing it down, but obviously I don't want it there in the first place. Googling this doesn't seem to produce a lot of results other than the fact that it is 'advertising malware'. Nevertheless, I have tried the few fixes they suggest, to no avail. I've also run Malwarebytes and Hitman. Basic protection is by Microsoft Security Essentials and the OS is Windows 7 (64 bit). Can anyone help this dummy please?