When I started my laptop today, he suddenly started deleting everything that I click on. I have restarted it several times, but the problem remains.
Which security software do you use?
Please product name - not manufacturer.
I use the standard windows antivirus program, so I don't have an extra program installed.
Your virus protection is holey.
You should restore a backup of the system partition from the problems and seriously consider using a more protective product.
So does that mean I have a virus? And if so, what can I do best now?
The probability is given and high - I have already written what you should do.