Whilst surfing the internet my computer crashed, came up with an error and then restarted itself. When it had come back into my account there was a 'delself' icon on my desktop and a red circle with a white cross telling me I was infected and to download something in order to "pervent" this. Now those two are the only changes, apart from my computer being a little slower, that I have recognised.
After googling how to deal with it I ran Spybot which found somethign but fixing it did not get rid of either symptom. I then checked the start>run>msconfig but could not find any of the files I was asked to look for. I finally downloaded Malwarebytes and ran a full scan and after fixing the problems found te red circle with a white cross is gone and I deleted the 'delself' icon.
I am now worried as to whether there is a virus that either of my programs haven't detected because my computer is still running a little slower (although I could just be paranoid) and I am afraid to enter personal details on the internet.
Thanks in advance.