It is a factory Windows-installed laptop. HP Elitebook 840 G4
Had got a new SSD installed, installed windows 10 (legacy mode off) downloaded from microsoft website. Worked good for 2 days, but on 3rd day - got this error at boot (photo attached) - "BootDevice not found. Please install an operating system on your hard disk. Hard disk (3F0) F2 system Diag.."
What was worse is the SSD was not getting detected & shown anywhere in BIOS/Boot menu.
Replaced SSD with a new WD Green SSD, installed Windows 10 (legacy off). Installed all drivers. Again after a day, when I opened windows explorer, suddenly after black screen - the exact same boot error appeard "BootDevice not found. Please install..".
Restarted - windows booted normally. But this happens again in every few hours. I am not starting with my work on the laptop until the problem persists.
Please help with this.
Windows 10 USB media created with latest downloaded microsoft tool. Turning off legacy as I think latest windows 10 and UEFI install will be good that way.
The laptop is an used one (seems very-good condition) I bought from a known vendor, he had replaced HDD with a new WD Green SSD. This laptop comes without optical drive.
Boot error screenshot
Had got a new SSD installed, installed windows 10 (legacy mode off) downloaded from microsoft website. Worked good for 2 days, but on 3rd day - got this error at boot (photo attached) - "BootDevice not found. Please install an operating system on your hard disk. Hard disk (3F0) F2 system Diag.."
What was worse is the SSD was not getting detected & shown anywhere in BIOS/Boot menu.
Replaced SSD with a new WD Green SSD, installed Windows 10 (legacy off). Installed all drivers. Again after a day, when I opened windows explorer, suddenly after black screen - the exact same boot error appeard "BootDevice not found. Please install..".
Restarted - windows booted normally. But this happens again in every few hours. I am not starting with my work on the laptop until the problem persists.
Please help with this.
Windows 10 USB media created with latest downloaded microsoft tool. Turning off legacy as I think latest windows 10 and UEFI install will be good that way.
The laptop is an used one (seems very-good condition) I bought from a known vendor, he had replaced HDD with a new WD Green SSD. This laptop comes without optical drive.
Boot error screenshot
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