Computer Profile Name and Picture Changed, Static from Speakers, FIle Folders Opened, Was I Hacked?

[TomatoPick]

One of my computers (we'll call it Computer #1) had it's profile name and picture changed to Admin(810)209-9993 and a picture of a painting. I tried restarting the computer to see if maybe it might've been a weird registry issue, but that didn't help. I don't want to log onto the computer with my password to get to the desktop for fear that it's been hacked or has a virus s for the time being I've shut it down. The computer is mostly used to play computer games by my mother, and to store pictures, etc of hers. Every now and then she gets on the Internet (We have Norton), but I was the last one on it a few days ago when I had Norton do a full system scan.

Adding to this, a few weeks ago I'd noticed some static coming through the speakers of Computer #2 (it has the same name as Computer #1) which is the one I mainly use. I didn't think too much of it and assumed the speakers were going out, but I started noticing it would happen at specific times in the evening or at night. There were a few times I'd discover my document file folder or the folder to my external hard drives were open. I didn't worry about that too much as I'd read that sometimes computer registries can do that. What does is that Computer #2 will sometimes connect to the Internet when I've  disconnected it and it's not set to connect automatically connect unless I hit the connect button.

Computer #3 is completely fine without issue.

Both computers use Windows 10 as I haven't upgraded them yet to Windows 11. Computer #3 has been upgraded to Windows 11. With all of the things I've mentioned above, can anyone tell me if they've been hacked or is this a Bios or registry issue?

[Rainbow23]

Hi @TomatoPick,
Welcome to HP Support Community. This is a great place to post questions and find answers.
Thank you for posting your query, I will be glad to help you.

I suggest that you keep your antivirus software updated.

Click Here to check this document for installing and updating antivirus software to protect your HP PC

The speaker static could occur if the electrical cables are not securely connected.

I hope this helps.
Take care and have a good day.

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