How-To Geek on MSN

Your hard drive uses one of three file systems—here's why it matters when you format

The real difference between NTFS, exFAT, and FAT32 (and which one you actually need) ...
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I learned what Windows quick format actually does (and it’s terrifying)

We've all done it, plugged in a USB drive or went to wipe an old HDD and found the "Quick Format" box in Windows because we didn't want to spend hours waiting for a drive to reformat. There's a reason ...