scams

First order of business:

Tell everyone you know:  Microsoft will NOT call you about viruses.  Your computer is not sending out viruses. (Well, maybe, but highly unlikely.) If someone calls you, hang up on them.  Do not entertain them for any longer than it takes to put the phone down.  These people are only out for two things:  access to your computer and access to your bank accounts.

If you get one of these calls (after you hang up!), run your anti-virus, then your anti-malware.  Usually, anti-virus (AV) is Windows Defender (also known as Microsoft Security Essentials, and is included with Windows 8, 8.1 and 10), Avast, Avira, Norton, McAfee, Trend, Kaspersky, or the like.  Run a Full Scan.  Then run your anti-malware (AMW); these include Malwarebytes Anti-Malware, Spybot Search and Destroy, Super Anti-Spyware, 

Then check that remote access to your computer is disabled.  You can do this by (and this works in all versions of Windows): going to the Control Panel, click on System, then in the left column, click on Remote Settings. A new dialog box will appear.  If there is a check in the box that says "Allow Remote Assistance," uncheck it.  Then close the box and close the Control Panel.  (Speaking of, the laptop I'm using right has it checked..... Really.)