What is a winrar
or an atr3
and I suspect that software has been downloaded to my laptop where you can watch from another computer. What do I have to do?
Winrar is a completely normal pack program like winzip
you'd better say where you found something and where your problem is.
you don't seem to have an overview of your computer.
and most of it was installed by yourself because you did express isntall and only clicked OK about everything.
Winrar is a program to compress files. Suppose you want to email a very large file. Then it makes sense to compress it (i.e. To reduce it), to send it and to decompress it again at the recipient. You don't have to know exactly how it works, but for me Winrar is one of the standard programs that belong on a PC (that or competing products). So nothing suspicious.
I've never heard of an atr3 in my life. Neither does Google. So I guess one file on your computer is called atr3. How you name your files, where the file comes from and what's behind it, I can't judge. It is your job to at least keep track of what is going on so that you know what is going on.
If you want to be on the safe side, I would set up the system again.
Another question: How do you get your suspicions?
Winrar is a data compression program and instead of atr3 you might mean at3, which is an audio format.
He / she / it wanted an answer from computer experts.