Windows 8 and 8.1 Forums


corrupt system files after new installation of upgrade

  1. #1


    Posts : 7
    win8

    corrupt system files after new installation of upgrade


    After installing Win8 upgrade over Win7 on two desktops and one laptop, I ran sfc /scannow (in an administrator command box) as I usually do after new installations, and in all three cases sfc found corrupt system files and repaired them. So anyone else downloading the upgrade and installing might find running sfc useful!

    SFC /SCANNOW Command - Run in Windows 8

    Bob Frost

      My System SpecsSystem Spec

  2. #2


    Posts : 22,581
    64-bit Windows 10


    Hello Bob, and welcome to Eight Forums.

    That's one of many reasons why I prefer doing a clean install instead.

    Clean Install with Windows 8 Upgrade
      My System SpecsSystem Spec

  3. #3



    The Contemplator
    (1963-2013)
    Doncaster, UK
    Posts : 638
    Windows 8.1 Pro RTM x64


    I second that. A clean installation really is the best way to go, particularly when it is not obvious what effect accumulated updates/programs/files on an existing OS will have on the new OS if you go down the official upgrade route as sanctioned by MS.
      My System SpecsSystem Spec

  4. #4


    Posts : 7
    win8


    I've never done an upgrade of an existing installation before, always done clean installations, but I read somewhere that MS had got the upgrade working well in Win8 so I tried it, and it saved me several days (weeks?) of reinstalling programs. Works well, no obvious problems with or without the corrupt system files, but I have got into the habit of running it now and again, along with chkdsk.

    Could be a fault in the download?

    Bob Frost
      My System SpecsSystem Spec

  5. #5


    Posts : 1,925
    Windows 8.1 Pro


    Some people have no problems with upgrades.. many others do. If the upgrade works for you, great. If it doesn't, then your best bet is to do a clean install, otherwise you may spend far more time trying to solve problems then doing a clean install.
      My System SpecsSystem Spec

corrupt system files after new installation of upgrade
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