Please Help

[alterna88]

I don't know what is wrong and I hope it is not virus.
About a week ago windows 7 started acting weird, by that I mean from time to time it starts flickering. The address/task bar starts flickering, if I'm using a program it shuts sometime... I don't know what is wrong. I have scanned my PC with my anti virus (Eset Nod 32) and nothing was detected. I have deleted all the programs I have installed in the past week and it is the same. Can somebody help me? Is there a way to fix this?

 

[alterna88]

AVs don't tend to look for certain types of malware/spyware. So give Malwarebyte's Antimalware a spin, see if it finds anything ESET missed/ignored.

Use Process Explorer [search for Sysinternals Suite on Google] and see what is running, anything you don't recognise the name of, look up.

Thank you for your advice

Can you write step by step for dummy (aka me) what to do.