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Recently, my laptop started slowing down a lot more than usual, where it took more than 5 minutes to load Visual Studio (Before, it only took at max 30 seconds).

so I ran an HDTune Benchmark:

enter image description here

This is a 750 Gig 5400RPM SATA Laptop Harddrive.

My impression was, for non-ssd drives, the benchmark result should look like a curve, starting from the top.

However, this result seems very sproadic, minimum being 0.3, maximum 97 and average 33.

Does this mean I need to replace my HDD?

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Maybe there are other programs or services accessing the hard drive, causing these performance hits? –  Gene Jul 9 '13 at 6:34
    
I'd take a look at the health and surface scan tabs too –  Journeyman Geek Jul 9 '13 at 6:37
    
@Gene As far as I know, there weren't any other processes running. –  l46kok Jul 9 '13 at 6:38
    
@JourneymanGeek No errors reported from Smart. –  l46kok Jul 9 '13 at 6:39

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