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Sector problem?

I recently cloned to a larger hard drive, and everything's been going okay, but more recently I'm getting random slowdowns that I didn't get with my old hard drive. I'll hear the HDD working hard during those moments, and the activity light goes crazy. My computer is effectively frozen for a few seconds, and then it's okay. Also opening Explorer seems to take a lot longer than before (just a white window appears for a few seconds before the folders and files populate), but both HDDs are single-platters spinning at the same speed. Feels slower than a 5400RPM drive a lot of the time.

My question is, the old drive was a 320GB Seagate Barracuda (circa 2009) that came with my Dell - 7200RPM, SATA 2, 512byte sectors. The new drive is a 750GB Hitachi Deskstar - 7200RPM, SATA 3, 4K sectors. Both were used in a SATA 2 port. When I cloned to the new drive, would I be getting worse performance because the 512byte sectors were copied to a drive that uses 4K sectors?
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  1. Best answer
    Yes, that can cause performance issues. Windows 7 can format 4k sector disk with no problem. If using XP, most drive manufacturers have a formatting utility that can properly format the drive for you.

    http://www.hitachigst.com/internal-drives/advanced-format-drives
  2. AH. I've got a misaligned partition. Looks like it's been emulating the 512B sectors I cloned - and reading/writing twice each time. I'll try that Align tool on that site.
  3. Good news, no Explorer lag anymore, and nowhere else that I can see. The only odd thing is startup takes a bit longer now. Especially my startup programs once the desktop appears. Strange... Thanks a lot Hawkeye :)
  4. Best answer selected by jessterman21.
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