Article translated by machine
This text is a machine translation. A revised version is planned.
If your computer is infected with a virus, it may show the following signs:
You notice toolbars, links or favorites in your browser that you do not know and have not added.
Your predefined search engine, start page or mouse pointer have changed unexpectedly.
You write an address in the search bar of your browser, but you reach a completely different website, without reference to your destination.
You see unexpected pop-ups with advertisements or threats - even if your computer is not connected to the Internet.
Your computer suddenly becomes very slow. Not all speed problems are caused by viruses, but viruses often slow down the computer noticeably.
Remove the current virus immediately - free solutions can be found here.
Then protect your end devices permanently with a professional virus scanner.