I see and understand that the mysterious System (Z:) has been appearing on the Windows 7 pc's and has folks wondering how and why it's there with no real answers that I can tell since the answers given are in relation to operating systems Winows 10, and stating that it's been an issue with that version and that possibly it's created by recent updates. Well I'm running on Windows 7 64 bit and I have had mny pc several years, and only recently started getting the System (Z:) showing. I see that it comes and goes, and "No" you can not accesss nor delete it that I can tell. Though if it's a real worry for you and you just want it gone. I have found that if you simply restart your computer that it goes away. It can and will come back at some point, but you can rid it for the time being. I don't like it being there, because I'm sure it's using data, Ram, and Hard Drive, because I have a program installed that informs me of all that Data useage and will tell me if my PC is running hot. As soon as I see it go up into the red letting me know that things are running at 100% and Hot, I look and sure enough the System (Z:) is there, and as soon as I do a restart of my pc it goes away and my pc is back to running normally. I tend to think it's a Trojan designed by HP or some other entity to access your pc and run data and or programs from afar. If it continues I will trash all my HP computers and buy a different brand, because it sure isn't doing this on my Leveno PC, only my HP's
> If it continues I will trash all my HP computers and buy a different brand, because it sure isn't doing this on my Lenovo PC, only my HPs,
Is it continuing?
I think that Windows Update on your Lenovo will behave just like Windows Update on your HP, namely "borrowing" about 256MB (0.4GB) of RAM, to create a "virtual" disk-drive, assigning it as 'Z:', and then deleting it, or allowing it to be automatically deleted when you reboot your hardware.
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