Last night I ended up with zentom system guard installing itself on my laptop. It slowed everything down and kept popping up in the middle of the screen wanting me to buy it and update it and kept popping up warnings on the toolbar. I know it was zentom because it wasn't exactly shy with it's name, it was coming up as a program in my start up menu, tool bar and obviously in it's popups. It would just close anything I tried to open, including the task manager window.
It stopped my internet connection and was trying to connect through another connection that I've never seen before. I managed to get it back to my own internet connection and followed instructions to remove the problem http://www.bleepingcomputer.com/virus-removal/remove-zentom-system-guard
Malwarebytes eventually managed to find the problem and said that it had removed it but although the popups are gone I am still getting the popup warnings from the tool bar and anything I try to open is taking about 15minutes to open and then opening multiple copies. If I try to open malwarebytes it says I don't have permission to open it. Also Every so oftne it will randomly come up and say that the thing I was searching for was not found and that I should check my spelling and press search again.. but I am not using the search funtion.
I don't know what else to try, I'm having to use my other computer to type this although I think with some patience I could probably open a webpage to follow instructions of help.
Please any advice on where to go from here would be appreciated