Windows 8 and 8.1 Forums


Fresh install of Windows 8.1 is incredibly slow

  1. #1


    Posts : 3
    Windows 7 Home Premium 64bit

    Fresh install of Windows 8.1 is incredibly slow


    Hey guys,

    Let's start at the start.
    So my Aunty complained that her computer had gotten really slow and asked me to look at it.
    It was running Windows Vista and took literally 30 minutes to boot to desktop, programs would take an age to open, the mouse cursor lagged and it was the same story in 'Safe Mode' even after deleting unnecessary programs, junk, defragging and doing a complete virus scan...

    My Aunty didn't have the Vista install disk (lost it) so me and my Uncle decided to just get Windows 8.1 and install that on there, but in the meantime I installed Ubuntu 14.04.02 LTS and it worked great! Ubuntu ran super fast and it was brilliant!

    But then the troubles started when I installed Windows 8.1... The first sign that something wasn't right was when it took 15 minutes for it to boot from the install disk! And it was lagging (laggy cursor and slow menus) on the installation that was booted from the windows 8.1 installation disk....
    It took 7 hours for the install to complete... and Windows 8.1 just lags on the desktop, programs and folders take ages to open, and the cursor movement is laggy...

    So I put the Ubuntu 14.04.02 LTS usb in and booted from that and selected the "Try Ubuntu" option (to test ubuntu without installing to the HDD) and that worked perfectly.
    So I created a bootable Windows 8.1 installation USB and tried that, same result as the disk, took ages to boot from it and the installation menus juts lagged...

    I am at a complete loss as to what's happening here.. Is this PC just allergic to windows?? Any help would be greatly appreciated

    PC Specs:
    HP Pavilion Elite m9357c (64-bit)
    CPU: AMD Phenom X4 9550
    HDD: Hitatchi Deskstar 750GB
    GPU: Nvidia GeForce 9300 GE
    Mobo: Unknown
    RAM: 6GB
    Last edited by Gamer Dude; 12 Jul 2015 at 11:19.

      My System SpecsSystem Spec

  2. #2


    Very slow performance like this, especially across a variety of different OSs, is often an indication of a failing hard drive. If this is the same hard drive that came with the Vista-era machine, it's near or at the end of its useful life.

    Since the PC runs fine in "LiveUSB" mode with Ubuntu, that further indicates that the hard drive is having serious problems.

    You could always go to the drive manufacturer's website and download their drive health app ... but at this point, I think you need to seriously consider replacing the hard drive.
      My System SpecsSystem Spec

  3. #3


    Posts : 3
    Windows 7 Home Premium 64bit


    Quote Originally Posted by Mark Phelps View Post
    Very slow performance like this, especially across a variety of different OSs, is often an indication of a failing hard drive. If this is the same hard drive that came with the Vista-era machine, it's near or at the end of its useful life.

    Since the PC runs fine in "LiveUSB" mode with Ubuntu, that further indicates that the hard drive is having serious problems.

    You could always go to the drive manufacturer's website and download their drive health app ... but at this point, I think you need to seriously consider replacing the hard drive.
    Thanks for your reply
    Sorry I didn't make the Ubuntu bit more clear, but Ubuntu worked perfectly fine when installed on the HDD... :/
    I am thinking of getting either a new HDD or an SSD. but the fact that it lagged even when booting from the windows installation disk and the windows USB but not the Ubuntu one is really confusing me.

    This is what happens:
    Ubuntu on live usb = running fast
    Ubuntu installed on HDD = running fast
    Booting Windows 8 installation from disk = slow and laggy
    Booting Windows 8 installation from usb = slow and laggy
    Windows 8 installed on HDD = slow and laggy
    Last edited by Gamer Dude; 12 Jul 2015 at 13:09.
      My System SpecsSystem Spec

  4. #4


    Posts : 3
    Windows 7 Home Premium 64bit


    Ok so I deleted all partitions on the HDD and formatted it and tried again: still slow...

    So I reset BIOS to defaults, changed floppy drive from "disabled" to "Not Installed" (there is no floppy drive in the pc) in the BIOS, unplugged the printer and tried again.
    And now it worked! Something in the bios must have been wrong or the floppy disk setting must have somehow been conflicting with windows??

    At least it's works now
      My System SpecsSystem Spec

Fresh install of Windows 8.1 is incredibly slow
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