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Can an old hard drive make a computer slow?

Can an old hard drive, even de-fragmented, make a computer go slow?
I completely deleted everything off of this hard drive a few months ago, repartitioned, reinstalled windows, everything. My old hard drive has Windows and a few programs, and my new hard drive has programs and other stuff on it, and my computer is pretty slow, with a good processor, video card and everything else.

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7 Responses to “Can an old hard drive make a computer slow?”

  1. fastmacbookpro said :

    Old as in outdated, yes!
    It may have low rpm or a slower connection.

  2. Evolve or become extinct said :

    No, its caused by an old installation of windows, it gets extremely lethargic over time. The only fix is reformat the drive and reinstall everything.

  3. Eric M said :

    The hard drive makes a big difference on overall computer speed. All files and data come from the hard drive at some point, so increasing the speed of said hard drive will increase overall system performance. Old hard drives are typically much slower than newer ones, so if you are stuck with an old one, it might be time for an upgrade.

  4. Harley Drive said :

    hard drives have always been the slowest part of a computer, look in device manger at the drive if it is not at least UDMA 4 it is slowing down your computer what is on the drive is irrelevant

  5. Lyne said :

    Probably, maybe you need new one.

  6. Stain said :

    Yes try Reginout

  7. Tricia said :

    Hi, here is some information on hard disk speed that might help : )

    Serial ATA (SATA) hard drives use less power, so they save your laptop’s battery. But, they also enchase your laptop’s speed performance. Most hard drives usually support ATA/66 (66 MB/sec), Ultra ATA/100 (100 MB/sec), or SATA (150 MB/sec) interfaces. The numbers refer to the maximum burst rate at which the drive can pass data to the system (66, 100, or 150 megabytes per second). SATA transmit data in a serially (in a single stream) as opposed to PATA or Parallel ATA which is commonly referred to as an IDE hard drive.
    (Note: You must have SATA support on laptop’s motherboard to enjoy SATA speed)

    Check the Hard Drive Rotational Speed

    Don’t forget to check the hard drive rotational speed! The hard drive rotational speed tells you how fast the drive spins its disks in revolutions per minute (rpm). A higher rpm means higher drive performance. A 7,200 rpm hard drive is faster than a 5,400 rpm or 4,200 rpm and gives better performance.

    Larger Buffer Cache Size – Better Performance

    Buffer Cache Size is a temporary data storage area used to enhance drive performance. When the computer requests data from the hard disk if that data is in the cache, there is a performance boost directly related to the speed of the cache. Larger buffer cache size usually results in better hard drive performance. Buffer cache size on the most of laptop’s hard drives is usually 2 MB, 4 MB or 8 MB.


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