Microsoft, or any company, cannot tell you what's wrong with your computer before they've even looked at it. However, when a foreign 3rd world criminal tricks you into turning over control of your computer - then - you've got computer problems, because they'll put it there. No one should touch your computer except you, and a repair tech at a brick & mortar repair store. The computer repair phone call is a well known scam. Hang up on them!
I just received a call from a man with a heavy Indian accent who said he was a service provider for all the Windows operating systems. He asked if I had received their messages about corrupted applications that had been corrupted by downloading files from the Internet. The call showed in caller ID as Anonymous.
He said his name was David Martin and his employee ID was 108GHY.
This is a COMPLETE SCAM. Do not give them any information. We took his information and I contacted our IT guy and he said no one from Windows would ever be able to tell if you have any problems with millions of users. Be smart and hang up.
Shut down your computer. Quicktime. Take it to a trusted IT person. Have it checked for every possible malware infection a computer might have. I'm no expert in this area. But that's what I'd advise.
Also, if you gave out any financial information like credit card numbers go to the bank and get a new card. If there were any passwords, you'll have to change all those too. Any financial accounts that might have been on your computer will have to be changed as well. Be on the lookout for any fraudulent activity in any financial account you might have.
Don't ever give strangers access to your computer. Do not give out financial information over the phone. This scam is being perpetrated by scammers in India/Pakistan and has been around for years.
Anytime you receive a call from a person with an Indian accent who either threatens you or offers you something, you can be almost 100% sure it's a scam. Nothing against Indians or [***], that's just the way it is.