So yeah...
My computer is a windows 7 ultimate i5 4 gb ram gtx 610 2 gb. I have this problem for three months now and not able to find the solution anywhere. I have Kaspersky 2016. So the problem is that the computer boots up, starts, works normal for a few minutes then! it becomes slow. The mouse slow, the keyboard letter typing gets slow, scrolling gets slow, Photoshop paint brush slow, games get slow, everything gets low. But....when i go to adapter settings and disable my Ethernet cable, the computer works just fine like awesome!!!but when i connect it back on, it slows down. I don't know what is causing this problem. I just usually play games or do my school projects but this lag made me turn off this computer for 3 months.(1 month was actually vacations. )
I will be so much happy if my problem gets fixed. I think it's some kind of virus or driver problem but who knows? Any help will be appreciated Oh yeah and it's a custom built desktop. And while i was typing this, the computer was slow