Microsoft’s error and warning messages never include a phone number and Microsoft does not send unsolicited email messages or make unsolicited phone calls to request personal or financial information or fix your computer.
The "Your computer has been Locked" Scam
support.windows.com says:
** Windows Warning Alert **
Malicious Pornographic Spyware/Riskware Detected
Error # 0x80092ee9
Please call us immediately Call Windows
Do not ignore this critical alert.
If you close this page, your computer access will be disabled to prevent further damage to our network.
Your computer has alerted us that it has been infected with a Pornographic Spyware and riskware. The following information is being stolen…
Your computer has been Locked
Your computer with the IP address has been infected by the Trojans — Because System Activation KEY has expired & Your information (for example, passwords, messages, and credit cards) have been stolen. Call Windows to protect your files and identity from further damage.
The scammer will typically attempt to get the victim to allow remote access to their computer. After remote access