Also you could try running your Anti virus as administrator that sometimes removes virusus that keep coming back even after you take action, which is simple to do.
1 Go to computer,
2 double click your local disk drive, example > Drive C.
3 Open Program files.
4 find your Anti virus then double click it.
5 then you will have a list of folders, find the exe or primary one and open it up, like for instance if it was AVG then the folder will be something like AVGFRW,
6 Right click on it once and open up Properties
7 then click Compatibilitys.
8 then at the bottom you will see Privilage level, tick this box in the run as administrator, then click Apply.
9 Restart your PC, after this windows may try to block your Anti Virus from starting up, just press allow.
10 then run full Scan, and remove infections.
This normally removes Trojans & malware that would normally keep coming back.