Browser hijacking. 

Your browser freezes and pop-ups warning you to call a fake Microsoft number
It also has a wonderful alarm that blares

This cheap theater is a scam. Only your browser is infected. 
I am writing this to prevent any undue stress on your end. 

  • One has to clean your browser and cache. 
  • I would also remove any extensions in your browser you do not know. 
  • Scan your computer with an anti-malware product like Trend Micro for HUC owned laptops or a free product like FortiClient. 
  • Reboot and reset your browser and you should be fine. 

Firefox browser hijacking 

Reset Firefox to factory defaults, which will get rid of any search engine or home page preferences. It’ll also turn off all extensions so you can start fresh. Bookmarks and saved passwords will stay intact. Here’s how it’s done:
  1. Click the hamburger menu button
  2. Select the question-mark icon at the bottom of the drop-down menu.
  3. Select ‘Troubleshooting information’ in the slide-out menu.
  4. Select the ‘Reset Firefox‘ button at the top right of the new Web page.
If you don’t want to go through with a reset, you may be able to remove the malicious toolbar by itself. Here’s how to do it:
  1. Click the menu button and choose Add-ons. The Add-ons Manager tab will open.
  2. In the Add-ons Manager tab, select the Extensions panel.
  3. Select the toolbar you wish to remove.
  4. Click the Remove button.
  5. Click Restart now if it pops up. Your tabs will be saved and restored after the restart.


Let's work on trying to protect you from these attacks. 


How to test your computer for tracking and privacy 
Pay this site a visit: https://panopticlick.eff.org/. 

It provides visitors with an option to do a test and analyze how well their browser and add-ons protect them against online tracking techniques.



Change your browser to something more private. 

Brave is a Chromium-based browser that blocks unwanted content by default and does not need much tinkering to keep you safe and private. Brave is available for Windows, macOs, Linux, iOS, and Android.

If you are a Firefox person try this browser.
Waterfox is a secure and private browser based on Firefox, that allows you to use Firefox extensions. It is available for Windows, macOS, Linux, and Android.


Use a Search Engine that maintains your privacy

Switch to DuckDuckGo as a search engine in your browser 
www.duckduckgo.com  
The Internet privacy company that empowers you to seamlessly take control of your personal information online, without any tradeoffs.
In Windows 10 remove the ad tracking
The setting in Windows 10 is found in the Privacy section, displayed as "Let apps use my Advertising ID...", which by default is ON and should be turned OFF to both disable and reset the ID.  This removes one huge ability for installed apps to easily track your computer. 

Clean your cache and cookies once a week. 

In Chrome
  1. On your computer, open Chrome.
  2. At the top right, click More More.
  3. Click More tools and then Clear browsing data.
  4. At the top, choose a time range. To delete everything, select All time.
  5. Next to "Cookies and other site data" and "Cached images and files," check the boxes.
  6. Click Clear data.
Firefox
  1. Click on the Tools bar.
  2. Click on Options (On Mac, it's labeled Preferences)
  3. On the menu to the left, select Privacy & Security.
  4. Under the Cookies and Site Data option, click the "Clear Data..." button
    Select only the two options and hit clear now.
Edge
  1. Click the Tools menu (three dotted lines in the upper-right corner), and open the Settings menu
  2. Click Privacy, search, and services on the left-side menu.
  3. Under the section Clear browsing data, Click Choose what to clear.
  4. Select Cookies and other site data and Cached images and files.
  5. Click Clear Now
  6. Close Microsoft Edge completely for your changes to take effect.
Safari
  1. Click on Safari on the top menu bar.
  2. Click Preferences
  3. Click the Privacy tab.
  4. Click Manage Website Data...
  5. Click Remove All.
  6. Click Remove Now
  7. Go to the Safari menu on the top menu bar.
  8. Select Quit to close Safari and save your changes.

Please keep this email as a reference. 
I hope you never have to use it. 

Stay safe!