Windows 10: how can i know if my pc is infected by any sort of virus?

I keep seeing these cmd.exe and powershell.exe popups whenever i login to my pc. Can anyone help me finding out if my pc is infected or not?

:)

 

steps taken for infected Pc's.


I was hoping someone could give me a list of step by step instructions you use as a guide to clean virus, malware...etc. so I can keep my PC clean if it gets infected.

thx

 

PC Infected with Virus

My boss isn't great with computers and clicked a link in an email she shouldn't have, now the PC is infected with one of those things asking for credit card info to buy anti virus software. I wasn't in the office today so I didn't get to look at it myself, but I told her to boot into safe mode and try system restore, it didn't work though and the virus/program still ran.

Usually in these cases, I just would reinstall Windows to make sure everything is clean. But she has data on this hard drive that can't be lost. When I go in tomorrow, I was going to see if I can copy the data to an external while in safe mode. I don't think it'll work, but I'll give it a shot.

I *think* I have a second internal hard drive at my office. Could I put this in the PC, install Windows on it, boot into the clean Windows then copy the files from the hard drive with the infected Windows?

Any suggestions how I should best deal with this?

 

Infected by mail.ru virus

I reinstalled Java, now its version is 64-bit. We have deleted and cleaned a lot of things. So I think I shouldn't think my PC is infected now. I thought silly about residual files, sorry for that. This infected virus disrupted my psychology. Anyway, is there any step to clean or do something else for harmful file or stuff in my PC?

Thanks.