Windows 8 and 8.1 Forums


Windows 8 flashing screen before logon screen

  1. #1


    Posts : 4
    Windows 8 x64

    Windows 8 flashing screen before logon screen


    My PC was working fine before today, until I used Ultra UXtheme patcher for Win8 x64 and then applied a custom VS for Win8.
    After a restart, Windows Explorer was not launching, so I opened task manager and did a sfc /scannow. After a reboot, I get to the Windows 8 boot menu (I have a dual-boot on this HDD with win7), and then the screen just turns on and off every few seconds, with the numlock light flickering with the screen.
    I tried using the automatic repair, both from the boot menu and from a backup USB, but it does not detect anything. and I still have the same issue.
    I restored the backups of uxtheme.dll, uxinit.dll, and themeui.dll, but that didn't help either.
    Any help?
    Attached is my ntbtlog.txt.
    Thanks in advance. There is no BSOD, the HDD keeps on spinning a few minutes after boot, and the numlock keeps on flashing.
    Anything else I can do from my win7 install? I'm currently trying to delete the theme.
    Edit: deleting the theme doesn't help, safemode doesn't help either. IMHO, it seems to be a driver issue, but there were no driver updates when it was working?
    Windows 8 flashing screen before logon screen Attached Files

      My System SpecsSystem Spec

  2. #2


    Posts : 4
    Windows 8 x64


    Fixed with a system refresh. Nobody helped at all?
      My System SpecsSystem Spec

  3. #3


    Posts : 5
    windows 8


    im having the exact problem. im having to use a different comp, but yeah i downloaded the same thing. i think its the uctheme patcher
      My System SpecsSystem Spec

Windows 8 flashing screen before logon screen
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