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:

https://startpage.com/eng/

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/

SUPERAntiSpyware: http://www.superantispyware.com/portablescanner.html?tag=SAS_HOMEPAGE

http://www.superantispyware.com/portablescannerhome.html

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

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For the most part that is it!

If you want and or need something extra then download:

SpywareBlaster: https://www.brightfort.com/sbdownload.html

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/

TDSSKiller: http://www.bleepingcomputer.com/download/tdsskiller/dl/4/

CWShredder: http://www.majorgeeks.com/files/details/cwshredder_%28last_merijn_version%29.html

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Finito!

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.