Hi, and thank you for asking your question.
You did the right thing here. If you receive any call from a service claiming to be Microsoft/Windows (or likewise) and offering to repair your computer or for any other tech services, please IGNORE them - they are not affiliated in any way, but are simply scam artists.
They trick users into allowing them remote access to their PCs and then install their worthless programs and other malware, while charging the users for doing so. Microsoft will never place unsolicited calls to anyone unless their services are specifically requested for.
For further info, please check out the following official support article on this scam:
If you need more help, please use the Reply tab to continue our conversation.
Otherwise, I'd appreciate it if you could kindly take a moment to rate my service by clicking on (and submit) a star rating at the top of this page. Thank you!
I see, all right. As long as you did not allow them remote access to your system, that is, they did not actually access and control your screen for a period of time, you should be just safe. Additionally, I'd advise you to download and run a full system scan using the following free security tool, so as to make absolutely sure that your system was not compromised in any way:
Also, as long as you did not exchange any financial info with them, things should be all right - no harm done here. Please make sure not to even entertain these types of phishing calls in the future. If you need more help, please use the Reply tab to continue our conversation.