HP Pavilion 20-b013w All-in-one PC
Windows edition: Windows 8.1
Processor: AMD E1-1200 APU with Radeon HD Graphics 1.40 GHz
Installed memory (RAM): 4.00 GB (3.58 GB usable)
System type: 64-bit Operating System, x64-based processor
I use with it the original wireless keyboard and the original wireless mouse.
I use AVG anti-virus (free) and Zonealarm Firewall (free).
Devices and Drives:
OS (C:) 327 GB free of 444 GB
Recovery Image (D:) 2.42 GB free of 19.7 GB
DVD RW Drive (E:)
SDHC (F:) 2.51 GB free of 3.73 GB
Removable Disk (G:) 5.16 GB free of 14.9 GB
All of those drives are mine.
But, it is from time to time that I have this drive(?) on my system:
SYSTEM (Z:) 323 MB free of 356 MB
It's showing up on my system right now.
That one isn't mine. It's some sort of a phantom hard drive (that's what I always call it) or maybe just (a phantom folder?) that shouldn't be there. Most of the instances in which it has inexplicably appeared I have been able to (get rid of it?) by way of rebooting the PC. (Although, I think that one or two times it may have been there even after a reboot.)
When I click on it to try and get into it I get a prompt that I don't currently have permission to access this folder. There is the option to click CONTINUE to permanently get access to this folder, but I am not willing to only because I don't know what I might be getting into in doing that. I am not computer savvy. I know only enough about computers to get myself into trouble if I should attempt to figure out how they work.
My computer has a lot of other problems, but I thought that I would reference only that one right now to see if anyone can explain its source and to see if anyone can tell me how to prevent it from ever showing up again on my system. I have tried to find a reference to someone else having had a similar situation by way of googling, but I couldn't find one.
Would some sort of a virus, malware, adware, trojan, etc. explain it? Is there a hacker in my system?
I sure would like to have an explanation for it. Thanks for any clarification that you can provide me with.