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Message 1 of 2
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Black bar on side of screen display

HP Recommended
HP all in One Pavilion
Microsoft Windows 10 (64-bit)

Every now and again (after a few days or a couple of weeks!) all of a sudden I get a black horizontal bar (say 5 inches long and half inch wide) at the left edge of the screen. It does not seem to correspond with any program change, eg e-mail to e-mail or  to Internet access or web page to web page. I bought this PC at Best Buy in January 2020 and this problem has been there from shortly after purchase but with the lockdown I have not been able to contact HP (their virtual agent could not help nor did diagnostics find anything wrong!) or Best Buy yet.

Can you help?


HP Support Agent
HP Support Agent
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Message 2 of 2
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HP Recommended

@bannon1 Here's what you need to do, to identify the issue and resolve it accordingly:

  • Check if it works fine on an alternate monitor, if not available, check the BIOS screen to identify if it's either a hardware or a software issue:
    • If it works fine on the alternate monitor or the BIOS (Accessed while tapping F10 during a restart for HP computers) it's a software issue & I suggest creating a new user account to check if that works better, for starters or contact the manufacturer or the desktop for support,
    • However, if it doesn't work within the BIOS or the other monitor either, I'm afraid it's a hardware malfunction.

P.S: Welcome to HP Community 😉


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