Hello, thank you for replying

I followed all steps on that tuto but the problem wasn't solved.

Which media release of WIndows 10 are you using?

See your other thread.

www.dell.com/.../SLN301036

Depending on where and when you obtained the image, you may want to download a newer build.

www.microsoft.com/.../

I download it from the officiel website of microsoft

I want to instal windows 10 pro N x64bits

ok i'll try

Try installing the version from the Dell link above.

You will need to reset the BIOS to the way it was before (if it was a factory install, likely UEFI and Secure Boot both ON).

I think that the problem is not with the windows version

but with the laptop, I have the windows installed on the SSD but it wont start from it.

this problem appeared when i updated my BIOS to the last version.

Hello, thank you for your assistance

I have windows 10 installes in my SSD, after I updated the bios, ithe laptop wont boot from SSD.

I tried every solution. I reset bios with factory settings and bios setting , I switched between legacy and UEFI mode.

But the problem persist.

when i put it on UEFI Decure boot ON. the SSD didnt appear on the boot list.

When I try with an external hard drive which wondows is intalled in it, it works.

Repair install time:

neosmart.net/.../

I can't repair it because the SSD is not bootable. I cant log to windows 10 directly from the SSD

You need to follow the instructions - make a set of repair media (with the exact same version that's on the hard drive) and boot from it -- be SURE the external drive is NOT connected when you do this.