Windows 10: Laptop shows a white dash while trying to boot

Discus and support Laptop shows a white dash while trying to boot in Windows 10 Software and Apps to solve the problem; Hi my lenovo thinkpad is showing a blinking white dash in the upper left corner of the screen and then bootloops even though i haven’t messed with... Discussion in 'Windows 10 Software and Apps' started by Maxwell Angers, Sep 19, 2024 at 5:02 PM.

  1. MAXWELL ANGERS
    Maxwell Angers Win User

    Laptop shows a white dash while trying to boot


    Hi my lenovo thinkpad is showing a blinking white dash in the upper left corner of the screen and then bootloops even though i haven’t messed with anything on it before so how do i fix this

    :)
     
    Maxwell Angers, Sep 19, 2024 at 5:02 PM
    #1
  2. TECHSUPPORTOR21
    TechSupportOr21 Win User

    Dash blink on boot win10

    My laptop is just dead, so I took laptop hdd and insert it on an desktop. I have install the hdd as normaly (with sata and power).The desktop bios recognized it. But when I start to boot an white dash is blinking. What can I do to fix it
     
    TechSupportOr21, Sep 19, 2024 at 5:09 PM
    #2
  3. SAMUELJOSIAHLEAL
    SAMUELJOSIAHLEAL Win User
    New SSD and when used for booting it boots on a black screen with a white dash.

    I bought a new SSD for my pc, i plugged it in and realized it was on MBR and i converted it into GPT using disk management. Everytime i go to bios settings i have to turn off secure boot and open CSM so i can see my SSD but everytime i use my ssd as a boot option it boots into a black screen with a white dash. Other tech savvies told me to unplug the power supply and hold the power button, well the black screen white dash thing is fixed but it just resets my bios options it turned on secure boot and disabled CSM and my boot option is on the HDD and the SSD is missing. I need help with fixing the black screen and setting up my boot settings for my SSD. Thank You For Hearing My Problem!
     
    SAMUELJOSIAHLEAL, Sep 19, 2024 at 5:09 PM
    #3
  4. JOHN VIL
    John Vil Win User

    Laptop shows a white dash while trying to boot

    White Screen on Windows 10

    Hi,

    There may be several reasons why your laptop's screen will show a plain white screen. To assist you better with this concern, kindly answer the questions below:

    • Have you made any hardware/software changes on your laptop recently?
    • At what point do this white screen appear?
    • Have you tried booting your computer into Safe Mode?
    • What troubleshooting steps have you done?

    We look forward for your response.
     
    John Vil, Sep 19, 2024 at 5:09 PM
    #4
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Laptop shows a white dash while trying to boot

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