I think you should see a significant improvement now.

I can supply you with a list of free antivirus to consider.

Also, if all seems better we can remove tools and quarantine folders now?

Note: The programs listed below are all free to use or they have some sort of trial. Some of them have a paid version that provides more features, while a lot of other good programs only have a paid version but aren't listed there (such as Kaspersky and ESET Antivirus products).
Some of these tools work good on different machines, you will have to experiment which runs well on yours.

Anti-Virus


Anti-Malware
  • Malwarebytes - Has both a free and paid version. The Premium version of Malwarebytes also offers Exploit and Ransomware protection, for a complete package of: Malware, Web, Exploit and Ransomware protection
  • HitmanPro 3 - Free 30 day trial
  • Zemana AntiMalware - Free 30 day trial


Firewall
Starting in Windows Vista, the Windows Firewall greatly improved and will satisfy the needs of most users. If you do not have an Internet Suite Antivirus program (which includes a firewall) and you want to use a 3rd party firewall, you can consider the options below.
  • GlassWire - Has both a free and paid version (with different packages)
  • Windows Firewall Control - Gives you more control over your Windows Firewall
  • TinyWall - Lightweight firewall implementing the Windows Firewall and giving you more control over it


Hardening your web browser means to install extensions that will help it protect itself (and your system on the same occasion) against Exploit Kits, MiTM attacks, etc. but also you at the same time. Here are a few extensions that I recommend you to install.
  • uBlock Origin: Efficient multi-purpose blocker that is lightweight on RAM and CPU usage (Google Chrome, Mozilla Firefox, Microsoft Edge, Opera and most Chromium and Firefox-based browsers)
  • HTTPS Everywhere: Extension that converts your HTTP (unencrypted) requests to HTTPS (encrypted) ones (Google Chrome, Mozilla Firefox and Opera)
  • Web of Trust: Website reputation, rating and review extension that will help you quickly identify bad and suspicious sites from good ones (every web browsers)
  • NoScript: NoScript is a script blocker (Java, Flash, JavaScript, etc.) for Mozilla Firefox and Firefox-based browsers (Mozilla Firefox and Firefox-based web browsers)
  • uMatrix: For advanced users, a point and click matrix-like extensions that allow you to control requests done on a webpage (based on source, destination and type) (Google Chrome, Mozilla Firefox and Opera)
  • LastPass: Secure password manager allowing you to create, manage, and use passwords you save in your LastPass account (every web browser)


created by Aura