HELP!!! So many Pop Ups I cant do anything!!!

Hello,

I really need help with my laptop!! I get so many re-directs and pop-ups its nearly impossible to do anything



Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft Windows 8.1, 64 bit
Processor: Intel(R) Core(TM) i5-4200U CPU @ 1.60GHz, Intel64 Family 6 Model 69 Stepping 1
Processor Count: 4
RAM: 6045 Mb
Graphics Card: Intel(R) HD Graphics Family, -2016 Mb
Hard Drives: C: Total - 912866 MB, Free - 877603 MB; D: Total - 25599 MB, Free - 23182 MB;
Motherboard: LENOVO, Lenovo IdeaPad S510p Touch
Antivirus: Windows Defender, Disabled

 

I really need some help with these pop-ups, and ads sending me all over the place