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Repair guides and disassembly information for HP's Envy line of laptops.

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How do I load a new OS or deal with the error message.

Error code=

Boot Device Not Found

Hard Disk (3F0)

F2. System Diagnostics

For more information. Please visit www.hp.com

I have been thru the HP. generic troubleshooting B.S..

I have reseated the hard drive.

I can run a “Memory Test"

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Does the drive show up at all in the BIOS?

If yes then your copy of Windows may be corrupted.

Can you not get into Windows Recovery?

I'm assuming you can hear the drive spinning and fans going.

Do you know that the W8.1 thumb drive is good? Has it been tried on another machine?

da

Usually that is due to a failing hard drive or hard drive cable being loose / damaged.

da

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Your OS is either not installed, missing or corrupted. You’re gonna have to buy another copy of Windows…

I suggest Windows 10, since support for Win7 is ending. Also maybe check the drive’s condition, if it’s a spindle drive.

Good Luck!

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The drive is fine. I have a thumb drive copy of the MS 8.1 OS. but cant seen to boot thru the USB even if i select it as first in the boot order.

da

Stupid question but have you tried other USB ports? Because maybe it's a mobo issue... I'll look into possibilities.

da

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J M sarà eternamente grato.
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