Windows 10: upgrade windows 10 to 2004: after update I've got "Reboot and select propert boot device or...

Today I upgraded from windows 10 1909 to windows 10 2004, and after a few reboots, I ended on:


"Reboot and select propert boot device or Inser boot media in selected bood device and press a key"


Before I started the update, I've got a bootloader with a selection between windows 7 & 10. So instead of entering in the bootloader, now I'm getting a black screen with the message above.


I've updated to 2004 through the regular windows-update procedure.


I followed https://www.dell.com/support/article/fr-be/sln300987/how-to-repair-the-efi-bootloader-on-a-gpt-hdd-for-windows-7-8-8-1-and-10-on-your-dell-pc?lang=en and https://neosmart.net/wiki/reboot-and-select-proper-boot-device/ to try to repair the bootloader but with no success...


If somebody can help me, it would be nice...

:)

 

reboot and select property boot device

You need to set your main Harddrive which has your Operating System on as the first harddrive to boot, if have more than one harddrive.

open Bios
boot priority
Select the OS harddrive as first boot drive , If not sure switch between them
Set correct time and date if wrong
Save and reboot

If not sure on steps , give the Make and model number of motherboard and can assist you.

Hopefully no damage to the HDD

 

Reboot and Select Proper Boot Device...after reboot?

Hello all. Getting a little frustrated here. A couple of weeks ago we had a user come in on a Monday morning to find that her pc was displaying the classic message "Reboot and select proper boot device...". Tried popping in a windows disk and fixing the MBR, no luck. Ended up reinstalling windows and her few programs back on it. All was good after this. For about a day. She came in the next day to find the same message. So at that point we decided that more than likely the drive was bad even though oddly enough it tested out fine. It was a Corsair 60gb SSD.

Last week we swapped that Corsair with a 64gb Crucial SSD and installed Windows. We then created a backup image of that drive. All was good until Thursday when her power strip that the PC was plugged into got tripped. Start up the computer for find "Reboot and select proper boot device..." message. So, apply the backed up image to the SSD since repairing the MBR didn't work.

Now this morning she comes in and the PC is running fine. Attempts to open Microsoft Word and she gets a pop-up stating there isn't enough disk space. So, she then restarts and upon booting back up gets "Reboot and select proper boot device..."

Any ideas what is causing this? Is it something with the mobo or do I just have horrible luck and replaced the bad SSD with another bad SSD?

 

Reboot and Select Proper Boot Device...after reboot?

cmos battery, or bios chip is screwed up