My computer was hacked.

[Intus]

Good socials. In the morning, I noticed that my DC account had been hacked. Then I checked my email and saw that my Steam account was also hacked. I changed the passwords for both accounts. Despite having Steam Guard enabled, someone accessed my account without my authorization. I then turned on 2FA for all my accounts and emails on my computer, enabling all possible security options. I deleted any potentially harmful software, ran a virus scan, and found an unknown G: Disk on my computer with 0 Bytes size that I couldn't access. I searched on Google and found videos describing similar situations but couldn't find a solution. The disk doesn't appear in the disk management section either. I tried running chkdsk: G: /f /r in CMD as an admin but received the following response: "Access denied as you do not have sufficient privileges or. The disk may be locked by another process. You have to invoke this Utility running in elevated mode. And make sure the disk is unlocked." I'm lost on what to do next... Please help.