Slider window popup

That sounds like a malware issue rather than an advert on this site

moved to malware cleaning

Download to Desktop: DDS by sUBs from one of the below locations

http://download.bleepingcomputer.com/sUBs/dds.com
http://download.bleepingcomputer.com/sUBs/dds.exe

double click DDS to run it
Make sure there is a check mark in DDS txt
place a check mark in the attach.txt box and then press start

Do not select any other options unless specifically told to

When complete, DDS.txt will openand attach.txt will be minimized on your taskbar, click on it to open it

Save both reports to your desktop.
DDS.txt
Attach.txt

post the contents of both logs back here.