Before you format, refer to:
https://www.bleepingcomputer.com/forums/f/22/virus-trojan-spyware-and-malware-removal-logs/
or
https://forums.malwarebytes.org/forum/7-malware-removal-for-windows/
They should help you to remove this from your PC, read the Forum Sticky's before you post there. Good Luck.
Hi Possessed.
I had so more problems with PC but now everything is cleared.
I just don't understand 1 thing so maybe you can tell me where I made a mistake.
I downloaded Avira antivirus software on my PC.
Afterwards started problems.
My Internet connection were connected to modem without any flaws but in the same time I couldn't get into any browser anymore.
I was checking my internet connection several times and all was fine. But after installing Avira everything stoped to work normally.
I went to uninstalling Avira afterwards and I couldn't do it. Then I saw that Avira is installed with few of installation that I needed to uninstall it firs before I uninstall all Avira package.
(Didn't know about that seriously - was thinking that every antivirus software is coming in 1 package and if I delete original one every other tool will be deleted automatically with it)
Then I went to see if I will have the same problem while Avira was running on my PC - but with connection on internet everything was fine.
So my question is:
Why my internet connection were disabled while Avira was running on my PC even my internet connection were connected?!
And thank you for links, I like it very much.
I couldn't find Sticky's forum

but I read a lot from there and I cleaned my PC from Trojan. There are lots of things you can learn it while just reading those post from forum.
Thank you for all your help Possessed, I appreciate it very much.