Computer Only Boots When Installation Media is in

[YoFavRussian]

Hey guys, so I got a weird problem, after doing a thorough clean of my PC, taking everything out and cleaning it the best I can. I've run into an issue where I get "Reboot and select proper boot device or insert boot media in selected boot device and press a key", I fixed this by using DiskPart to set the primary partition as active. And it boots just fine, until I remove the installation media. It goes back to the error until I insert the installation media again, it resumes to boot like normal.

 

[vrumor]

Did you set the OS drive as the boot drive in the BIOS?

 

[YoFavRussian]

Did you set the OS drive as the boot drive in the BIOS?

Yes I have, I've tried changing the boot order three times, but I'll check one more time.

 

[scout_03]

MERGED QUESTION
Question from YoFavRussian : "Computer Only Boots When Installation Media is in"

Hey guys, so I got a weird problem, after doing a thorough clean of my PC, taking everything out and cleaning it the best I can. I've run into an issue where I get "Reboot and select proper boot device or insert boot media in selected boot device and press a key", I fixed this by using DiskPart to set the primary partition as active. And it boots just fine, until I remove the installation media. It goes back to the error until I insert the installation media again, it resumes to boot like normal.

use the os iso files to do a bot ini repair also check if sata cable on the hdd in wel plug in on it and the board .

 

[YoFavRussian]

Did you set the OS drive as the boot drive in the BIOS?

Just as a little update, enabling all devices and disabling everything except for the boot device seemed to fix the issue, thanks for the suggestion of checking the boot order one more time.

 

[Colif]

check what boot method it is using, possible boot method swapped to legacy/UEFI when you turned it back on
check if there is a boot option called Windows Boot Manager as if hdd formatted as GPT this might be what you want as 1st in boot order.

What is likely to have occurred is because win 10 isn't actually off when you shut it down, it is likely the boot config files have been corrupted when you unplugged it and did the clean. I have seen this before

the above cryptic answer is right, on another PC, download the Windows 10 media creation tool and use it to make a win 10 installer on USB, as a boot drive (unless you have it)

change boot order so USB is first, hdd second
boot from installer
on screen after languages, choose repair this pc, not install.
choose troubleshoot
choose advanced
choose start up repair - this will scan PC and maybe fix this - will ask for logon info

if that doesn't work
change boot order so USB is first, hdd second
boot from installer
on screen after languages, choose repair this pc, not install.
choose troubleshoot
choose advanced
choose command prompt
follow this - https://www.lifewire.com/how-to-rebuild-the-bcd-in-windows-2624508

helps if hdd plugged in as well.