I have a phantom USB memory stick appearing and disappearing repeatedly on my Windows 7 HP laptop computer model 8730w. The computer keeps making a noise 'bah-dum', about once a second and in the 'Memory Stack' briefly (1/8 of a second) appears as F: drive before disappearing.
I've never put a memory stick on this machine since Windows 7 was recently installed. At first this did not happen after install, then it started.
This is causing havoc on my system. Menus that are opened get closed in sync with the beeping, making it hard to use menus if you are not quick enough.
How can I exorcise this phantom drive from my system and reclaim control of my computer?
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(The above was originally created as a PDF and hosted on a google docs site. I've downloaded the single-page PDF as an image and included it in this response.)