Hello,
Based on my understanding, did you mean that your computer became corrupted after you logged in with your Microsoft ID to the Microsoft Ignite event (the same thing happened to your laptop)? After that, did you receive emails on your phone indicating that someone is accessing your mobile device and that data on your mobile is lost?
From what I gather, your main requirements are:
1.Recover the data on your desktop and laptop systems.
- Secure your Microsoft accounts.
Is this correct?
If you are concerned that your account might be hacked, you can refer to this article: How to recover a hacked or compromised Microsoft account - Microsoft Support
I hope this information helps.
Best regards,
Karlie Weng