Hello, recently I got a really old pc from a friend. He tells me that he can't use it cause the system is "messed up" and that if I could fix it, I could have it. Keep in mind that he was an extremely lazy user who did not even keep the OS installation disk. Without it, I can't even do a formatting of the hdd. So the first thing I did was download Malwarebytes and Avira to flush out some of the problems. That created more problems coz every time I try to do a scan, the computer lags very badly and then just shuts down. At this point, I am lost. Any idea of what to do next?
Some additional details: Weird ads popping out of nowhere, browsers filled with unknown taskbars, the firewall has been down for some time and the OS is still a windows xp.
Some additional details: Weird ads popping out of nowhere, browsers filled with unknown taskbars, the firewall has been down for some time and the OS is still a windows xp.
