Windows 10: My mother downloaded a screen sharing program from a nefarious technical support company.

My mother downloaded a screen sharing program from a nefarious technical support company. Once it was discovered that they were scammers I deleted the screen sharing app. But they are still getting in somehow. She is still getting a blue screen that comes up and it says "don't turn off your computer, it is updating. Then they take control of the mouse. Any help or guidance would be greatly appreciated. This is on a Lenovo Laptop ideapad.Thank you in advance for your help.

:)

 

Is USA Technical Solution a legitimate company

Define "legitimate."

• What is a Microsoft [Gold] Certified Partner?
  
  
  http://securitygarden.blogspot.com/2011/09/microsoft-removes-gold-certified.html
  

How did you find/reach the "Microsoft office rep on 4/26/2017?"

Were you charged for the support by USA Technical Solution?

 

support company

rather than paying a third party for support, you should first contact the company responsible for the software you are experiencing problems with, there is often some level of free support available,

support here is free, experts will attempt to talk you through resolving your issue rather than gain access to your computer.

if the answer suggested is not clear or easy, you only need to ask for clarification or step by step instructions.

 

Technical Support

I would just like to know if Mytech is a legitimate technical support company for Microsoft?