I haven't had much experience with USB flash drives and a couple day ago it was my first time using Ready Boost on a 4gb USB Flash drive. I had to remove the Flash drive because I had to temporarily use the slot for a boot-able disk. I put the USB back in, I thought I could Format it and try Ready boost again, but it said that there was a program running in it and I couldn't Format it. Does this mean my USB is still actively using Ready boost or my USB is messed up?
Thank you.
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