Windows sign-in: LogonUI.exe - Application Error


  1. Posts : 3
    Windiws 10 64 bit
       #1

    Windows sign-in: LogonUI.exe - Application Error


    I am using HP dm4 laptop pre-installed with Windows 7 Home Edition.
    I have upgraded to Windows 10 Home edition as part of the upgrade during Windows 10 release around august. After the windows 10 upgrade my HDMI was not working.
    I used to connect my laptop to Sony TV which was not working after the upgrade.

    Apart from that no issues.

    Suddenly today when i switched on my laptop, getting the below error:

    Windows sign-in: LogonUI.exe - Application Error

    The instruction at 0x0000000000000000 refeenced memory at 0x0000000000000000. The memory could not be written.


    I tried to login with safe mode, but couldn't login. Then i have downloaded the USB windows 10 bootable disc and followed the below instruction to enter safe mode which is not success.

    Using the windows 10 bootable disc, there is option to install the windows 10, but it is asking for product key which i entered the valid windows 7 product key (pre-installed windows) sticked back of my laptop was not verified.


    Do i need to install windows 7 first? Please advice.

    Also, i have ran HP system diagonistic for START UP TEST (memory test - PASSED, SMART check - PASSED, optmized DST - PASSED, BatteryTest - FAILED)

    Hard Disk Test (SMART check - PASSED, short DST - PASSED, long DST - PASSED)

    Memory Test - PASSED
      My Computer


  2. Posts : 284
    Ten
       #2

    Wow, same issue here, that too HP laptop.
    I guess the last Windows update damaged both our systems.

    Here's my thread:
    Blue startup screen flickering - HP Laptop - Windows 10 Forums
      My Computer


  3. Posts : 3,506
    Windows 10 Pro 64-bit 21H1 (May 2021 build 19043.1083)
       #3

    Using the Windows 10 DVD, select Repair this computer. This will try to repair startup. If it succeeds you will be prompted to restart and test it. If it doesn't you can then proceed with the more advanced troubleshooting options. Select System Restore and try to return to a working restore point. If the most recent fails, try the previous one.
      My Computer


  4. Posts : 284
    Ten
       #4

    spapakons said:
    Using the Windows 10 DVD, select Repair this computer. This will try to repair startup. If it succeeds you will be prompted to restart and test it. If it doesn't you can then proceed with the more advanced troubleshooting options. Select System Restore and try to return to a working restore point. If the most recent fails, try the previous one.
    That doesn't work.

    And System Restore is very old.
      My Computer


  5. Posts : 3,506
    Windows 10 Pro 64-bit 21H1 (May 2021 build 19043.1083)
       #5

    Yes, but I would rather return to an old restore point and do again any updates and changes since then, than do a clean install!
      My Computer


 

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