Drive Consistency.

My friend stated that she got a "weird error" at every windows startup. I went and had a look, and every time she turned the PC on or restarted, the blue screen bearing the "One of your drives needs to be checked
for Consistency" error appears. EVERY startup. I also wonder as to why it is
partitioned as Fat32 .
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Anyway, does this error before every windows session mean that the drive is
dying, or the fact that it is Fat32? Occasionally during Windows, the drive will
often make that "busy" noise, yet nothig seems to be happening.

Any help?