M
Mr_Arkady
Hello Microsoft Community,
Yesterday (4/5/2021) I encountered a problem when booting Windows 10 on my PC. I saw the initial BIOS screen and after a few seconds a black screen occured. I was so surprised because on the same day morning everything was working fine and the system shut down without any problems.
I entered the emergency screen to run the repair toolkit but it failed with the following error:
It was so weird because my Windows installation is on drive C.
I did not install any software or drivers/BIOS updates, the only thing I remember was the warning from security center that Windows Defender is outdated so I clicked to update it (operation completed successfully).
Next, I decided to restore my instance to the last correct version (3/31/2021) but that did not solve the problem.
Then, I navigated to the command window to check the setup of disks and volumes.
I have two disks: 0 - HDD and 1 - SSD, both GPT and the disk 1 is a bootable UEFI device with WIndows 10.
Then, I looked through the volumes and saw the configuration has changed:
Volume 0 is my HDD disk with one partition that was originally letter D.
Volume 1 is my SSD disk primary partition with the Windows installation that was originally letter C.
Volume 2 was the recovery volume.
Volume 3 was the boot volume (there was no volume letter, but I assigned V to be able to navigate to this volume).
When I listed all paritions for SSD disk I saw the same list of partitions but with information which one is primary, system and recovery.
I tried to fix the problem by rebuilding the MBR using /FixMbr /FixBoot /ScanOs /RebuildBcd - it failed on missing privileges for FixBoot, ScanOs did not return any rows.
Then, I manually corrected volume letters and rebuilt the MBR once again - it failed same as above.
Finally, I tried to manually setup the primary partition as bootable but it failed with information that the partition needs to be MBR not GPT UEFI (to use the active command).
I navigated through system and data partitions and I saw all files were available.
I found the log that was generated during the repair process - I saw a number of tests executed and all of them were passed.
Now, I am completely lost and I have no idea how to fix the problem. I hope, there is a chance to fix the configuration, otherwise I will need to install Windows 10 from scratch.
I would be very grateful for your help in solving the problem.
Please, let me know if you have encountered a similar problem, if you know how to fix the configuration or if you have any recommendations on how to avoid such issues in the future.
Thank you,
Mr Arkady
Continue reading...
Yesterday (4/5/2021) I encountered a problem when booting Windows 10 on my PC. I saw the initial BIOS screen and after a few seconds a black screen occured. I was so surprised because on the same day morning everything was working fine and the system shut down without any problems.
I entered the emergency screen to run the repair toolkit but it failed with the following error:
It was so weird because my Windows installation is on drive C.
I did not install any software or drivers/BIOS updates, the only thing I remember was the warning from security center that Windows Defender is outdated so I clicked to update it (operation completed successfully).
Next, I decided to restore my instance to the last correct version (3/31/2021) but that did not solve the problem.
Then, I navigated to the command window to check the setup of disks and volumes.
I have two disks: 0 - HDD and 1 - SSD, both GPT and the disk 1 is a bootable UEFI device with WIndows 10.
Then, I looked through the volumes and saw the configuration has changed:
Volume 0 is my HDD disk with one partition that was originally letter D.
Volume 1 is my SSD disk primary partition with the Windows installation that was originally letter C.
Volume 2 was the recovery volume.
Volume 3 was the boot volume (there was no volume letter, but I assigned V to be able to navigate to this volume).
When I listed all paritions for SSD disk I saw the same list of partitions but with information which one is primary, system and recovery.
I tried to fix the problem by rebuilding the MBR using /FixMbr /FixBoot /ScanOs /RebuildBcd - it failed on missing privileges for FixBoot, ScanOs did not return any rows.
Then, I manually corrected volume letters and rebuilt the MBR once again - it failed same as above.
Finally, I tried to manually setup the primary partition as bootable but it failed with information that the partition needs to be MBR not GPT UEFI (to use the active command).
I navigated through system and data partitions and I saw all files were available.
I found the log that was generated during the repair process - I saw a number of tests executed and all of them were passed.
Now, I am completely lost and I have no idea how to fix the problem. I hope, there is a chance to fix the configuration, otherwise I will need to install Windows 10 from scratch.
I would be very grateful for your help in solving the problem.
Please, let me know if you have encountered a similar problem, if you know how to fix the configuration or if you have any recommendations on how to avoid such issues in the future.
Thank you,
Mr Arkady
Continue reading...