virus evading detection by most programs, preventing from complete removal

hey guys.

hope i'm doing this right. I've tried everything I can think of to rid myself of this virus. certain programs will detect certain files, but even when I seemingly fix them, they always return whenever I scan again. I have tried every malware program and anti virus I could find, and nothing works. I have multiple issues with this virus. or possibly multiple viruses. research has lead me to believe it may have been a usb dropper of some sort. hopefully not. I have four phantom removable disks that install themselves as hard drives every time I reboot. I also seem to be broadcasting my wireless internet signal, and allowing remote access. there is a "system" user that overrides my administrative powers. all this, along with the usual redirects and random sites appearing in my web history. I hope someone can help, and hopefully I haven't damaged anything too bad by tweaking with it on my own.

Thanks for your time.

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