Cannot Boot from USB/SD card

[Keruzhko2]

Hi guys,

My tablet (HP Pavilion x2 - 10-k002nr, which has only 32GB on disk) was long ago filled up with Windows updates and could not boot due to abscence of space. I tried installing other OSs to test it, the last one was Elementary OS Linux. But it had issues with Wi-Fi adapter, both internal and external ones. So now, after finding the device which has been untouched for years, I wished to return to Windows but the tablet cannot boot an installer from USB stick or from SD card. No matter whether I enable secure boot or disable it (Legacy is abscent in BIOS) and which file system they are formatted to. Tried to install Windows to a disk partition inside Linux but after such experiments, the black boot screen says only "grub rescue. unknown filesystem".

Though my main question is can I find a way to make the HP Pavilion see installer on USB or SD card? 

Thanks!

[ub6424]

Hello @Keruzhko2 

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@Keruzhko2 wrote:

.... Tried to install Windows to a disk partition inside Linux but after such experiments, the black boot screen says only "grub rescue. unknown filesystem".

---

Hello @Keruzhko2 

You get this error because master boot record/sector of hard disc still contains grub ( boot manager )

(1) Delete / Remove MBR

(2) To help you I need to know the product number (p/n) xxxxxx#xxx of your notebook !

It looks something like this:

You will find this information on the back/rear of your notebook in small alphanumeric letters.

Kind regards

[Keruzhko2]

Hi Ub6424

Thank you for the message! I might misunderstand the product No. as it is obliterated a bit due to time passed. Ah, I've found it in BIOS: K6Y03EA#ACB. Concerning the removal of MBR, I am not sure if it is possible from the grub rescue interface, though I am quite a noob in linux systems, and hope it really is.

[Keruzhko2]

Ah, I've seen the Product No. in BIOS: K6Y03EA#ACB

[ub6424]

Hello @Keruzhko2 

(1) Please install Windows 10 (32-bit) !

Useful guide:

Windows 10 Free Download Full Version 32 or 64 Bit ISO [2022 Tips]

(2) After Windows Setup is done install

Software and drivers for HP Pavilion x2 - 10-k002nr

(3) Please report your results

[Keruzhko2]

Hello!

I wish to. But how can I install it when USB stick does not boot? See my topic, please. 

Could that be an issue of grub that prevents launch of other systems? When I try to with secure boot enabled it tells me that Selected Boot Image did not Authenticate.

[ub6424]

Hello @Keruzhko2 

As I wrote before delete MBR -> previous post

BIOS:

Disable <secure boot>

Enable <legacy boot>

Try again

Kind regards

[Keruzhko2]

Hi,

Thank you once more! In your link, I see ways of deleting MBR in terminal, but I am stuck on grub rescue and cannot repair GRUB. Answer:

error: unknown filesystem

to all partitions by the ls command. Is it possible to delete MBR from here? 

BTW, legacy boot is abscent in BIOS f.04, only secure boot is present.

[ub6424]

Hello @Keruzhko2 

Please send pictures of < all > BIOS settings

( if serial number, device id, UUID, System Board CT Number is displayed, please blur )

[Keruzhko2]

Here are System configurations. Others won't be of any help I guess.

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