Issues with my USB flash drive?

So, I just picked up a micro SD card and popped it into my PC (running Windows 7), but for some reason, it’s totally MIA in My Computer. To make things weirder, when I checked Device Manager, there’s this nasty little yellow exclamation mark sitting right next to the SD memory card entry.
I already tried the classic move of restarting the whole machine, but no luck—still the same headache. It works perfectly fine when I plug it into other laptops, though, so it's definitely not the card itself.
Does anyone have any clue what might be causing this glitch?

Maybe it's showing up in Disk Management?

Nothing

What does it say when you go into the Properties for that yellow exclamation mark?
That yellow warning icon doesn't always mean it's a driver issue—it could be pointing to all sorts of other errors, I guess.

Brandon Davis7 wrote "This device cannot start. (Code 10)"

Brandon Davis7 said:So I picked up a micro SD card today and popped it into my PC (running Windows 7), but it’s nowhere to be found in My Computer. When I check Device Manager, there's just a yellow exclamation mark next to the SD memory card entry.
I tried a reboot, but no luck. It works fine on other laptops, though.
Anyone have a clue what's going on?

Just take it back to the store. Tell them to swap it out for a working one or give you your money back.

But honestly, I know the card itself isn't the problem, because it works perfectly fine whenever I plug it into any other computer

Regarding that card reader that won't pick up the SD card—have you maybe tried testing it with a different one just to see if the reader itself is actually working?

The others aren't working either

So, it's probably not an issue with the USB flash drive itself, but rather the card reader.--

Brandon Davis7 said:But the card works fine, since it works on every other computer I've tried it on.

My bad, misread the post. Yeah, if it works elsewhere, then the card is good.