Windows 10: sihost.exe unknown hard error when booting up computer and high brightness

Discus and support sihost.exe unknown hard error when booting up computer and high brightness in Windows 10 Ask Insider to solve the problem; An application called “sihost” told me that it had encountered an “unknown hard error” while my PC was booting up (with the circles going in a circle).... Discussion in 'Windows 10 Ask Insider' started by /u/Hitomi_Minami, Mar 20, 2021.

  1. sihost.exe unknown hard error when booting up computer and high brightness


    An application called “sihost” told me that it had encountered an “unknown hard error” while my PC was booting up (with the circles going in a circle). My brightness was also very high, if that changes anything. What caused this? Will it ever happen again?

    submitted by /u/Hitomi_Minami
    [link] [comments]

    :)
     
    /u/Hitomi_Minami, Mar 20, 2021
    #1

  2. windows 10 sihost unknown error

    Is there a fix for the April windows 10 sihost "unknown error"?

    Thanks
     
    martineley, Mar 20, 2021
    #2
  3. sihost unknown hard error

    running Win 10 on a Toshiba. Third party Antivirus which has been running for two years without error. very few "Apps" Office 2013 running. not running outlook..

    computer booths and login screen shows. login normal mode, background pops up for a few seconds then the screen goes dark. mouse pointer is on screen and can reach the Task Manager but nothing else.

    similar in safe mode except that the screen fully loads then a sihost unknown hard error pops up. when i click "OK" the

    screen goes blank.

    I have tried to do a system restor and ipt atopped early in the cycle.

    Any ideas or directions?

    ***Post moved by the moderator to the appropriate forum category.***
     
    Bluenote38, Mar 20, 2021
    #3
  4. GregZara Win User

    sihost.exe unknown hard error when booting up computer and high brightness

    sihost.exe unknown hard error

    My PC recently updated and I have an empty deskstop. Believe it's due to sihost.exe unknown hard error. I tried to do the 5 fix at Fix: sihost.exe Unknown Hard Error after Windows 10 April 2018 Update 1803 | Driver Talent

    I have done "Perform a Clean Boot on Your Windows 10" but it did not work.

    I could not Run SFC/Scannow Command and Run CHKDSK Command Press Windows + X is not working.

    Likewise my start menu is not working.

    Please help
     
    GregZara, Mar 20, 2021
    #4
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sihost.exe unknown hard error when booting up computer and high brightness

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