I use freeware, the best freeware.
Use a search engine such as Google or whichever else you like best to find them with.
If you don't know how to find and or use a search engine, well --------
Here is the search engine that I myself use:
With it look for:
Kaspersky Virus Removal Tool: http://devbuilds.kaspersky-labs.com/devbuilds/KVRT/latest/full/KVRT.exe
Emsisoft Emergency Kit: https://www.emsisoft.com/en/software/eek/download/
Malwarebytes Anti-Malware: http://www.majorgeeks.com/files/details/malwarebytes_anti_malware.html
Spybot - Search & Destroy: http://www.majorgeeks.com/files/details/spybot_search_destroy_2_12_final.html
For the most part that is it!
If you want and or need something extra then download:
Malwarebytes Anti-Exploit: http://www.majorgeeks.com/files/details/malwarebytes_anti_exploit_%28formerly_exploitshield%29.html
OpenCandy Cleanup Tool: http://www.ghacks.net/download/104538/
I have tried most of the anti-malware programs that there are on the Internet for download and these that I posted about are the very best ones, there is nothing better.
There are other antimalware programs, but these are some of the most trouble-free ones and easier to use, they are on-demand scanners and cleaners they work only when you want them to, so they never get in your way.