Hello,
It sounds like your computer may have been compromised. Here are some steps you can take to address the situation:
- Restart your computer and boot into Safe Mode. This will allow you to access your system with minimal drivers and services running, which can help you troubleshoot and remove any malicious software. Once in Safe Mode, go to the User Accounts settings to see if there are any unfamiliar accounts. If you find any suspicious accounts, remove them.
- Change the password for your main user account and any other accounts on the computer.
- Run a full system scan using a reputable antivirus or anti-malware program.
- Look for any unfamiliar programs that may have been installed without your knowledge. Go to Control Panel > Programs > Programs and Features.
- Ensure that no remote access tools (like Remote Desktop) are enabled without your knowledge. Go to Settings> System > Remote Desktop. Make sure that Remote Desktop is turned off unless you specifically need it.
By following these steps, you should be able to secure your computer and prevent further unauthorized access.
Reference: How to recover a hacked or compromised Microsoft account - Microsoft Support
I hope this information helps.
Best regards,
Karlie Weng