I would really appreciate some advice on how to remove an infection from my computer.
The issue started about 4 weeks ago when I received a heap of emails advising me that messages sent from my account had not reached their intended destination. Of course, these were messages sent by the virus/malware and not me.
I ran Norton Antivirus and it found and removed the same virus (W97M.Downloader) from 2 files. (Interestingly Malwarebytes did not find anything.) The problems seemed to go away for about 10 days but then the issue repeated itself. Again I ran Malwarebytes which found nothing and Norton which discovered the same virus in 4 email backup files. These were again removed. Another 10 days passed and I thought all had been solved but then the same issue has occurred again today. This time neither Malwarebytes nor Norton have been able to find any issues.
The Malwarebytes version is from a fresh install today from a link in a similar post in this forum. Rootkits scanning was enabled.
My system is running Windows 10 Home and I use Windows Live Mail for email.
Any help would be greatly appreciated.