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‎10-26-2022 06:52 AM

HP Recommended
Product: HP Probook 4540s
Operating System: Microsoft Windows 10 (64-bit)

Hello, i own a notebook hp 4540s and i have problem, i have external connected monitor, mouse, keyboard, headset. My notebook monitor is broken so i disconnected it and remove it. I dont have bios battery cuz tha cable is broken. I want install windows from flash disk i trying it and i doing shortcut for install it and i have black screen cuz im connected with external monitor VGA i dont see if it installing if it write some error idk. I see my keyboard have lights but no all keyboard lighting only windows button idk why. My notebook normal is turning on but i dont know if it write some error, i already tried windows button + P. I had a windows 10 on it and it run very good but i had some issues with my disk space so i decided to do a reinstall windows. I was wait a 15 hours bcs i dont know of it was installing or not, so i decided install from another computer a windows 10 on flash disk and boot it and now i have same issue, black screen so i dont know if it installing or not. 

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