Windows 10: INACCESSIBLE BOOT DEVICE after Win10 Update

Hi there
@Kbird

Just tested trying to install Windows on device with > 4 partitions -- system wouldn't install (message on each partition selected for installation -- system cannot be installed to this partition !!) so I'd suggest the OP wipes his HDD first and then tries again -- also allowing legacy boot and disabling secure boot in BIOS. (Shows I'm not to busy today !!!)

If HDD is < 2 TB I wouldn't bother with GPT - simply split HDD into say 2 physical partitions C and D - make C say 100 GB for Windows and D the rest for data. Now try and install Windows on "C".

If computer only has UEFI still disable secure boot and ensure that when the install media was created it was created on a computer that was UEFI capable or again system won't boot after install !!!!!. You'll also need to make the HDD a GPT one in this case.

Rufus is the best tool for creating bootable media once you have the iso downloaded.

Cheers
jimbo

 

Sorry Jimbo , I didn't mean to infer your advice was wrong at all , I just see People trying all these complicated fixes without trying the simple stuff like checking the Boot Order in the Bios (Windows Memory Mananger 1st still?) or the Macrium Fix Boot Option 1st.

I believe there was (is?) an old limit which was 4 Primary Partitions on One disk (MBR?), ( which could be 4 Disks too) you could have as many logical partitions as you wanted ( inside an Extended Partition), if I remember correctly.

found this at Aomei.....

The Rules of Partitioning a Hard Drive

A hard disk drive must be partitioned before you can use it. There are some rules as follows:

• A maximum of four primary partitions can be created on any MBR hard disk. The limitation of four primary partitions is that when one primary partition is applied to the system the master boot record is structured.
• There is only one primary partition can be designated as active partition and this partition is used to boot system.
• BIOS will only recognize the active partition for loading operating system. Other partitions can’t be recognized.
• To break the limitation of at most 4 primary partitions, you have to create 3 or less primary partitions plus an extended partition and there is only one extend partition.

You don't really need Rufus these days , Window's Explorer will open any .iso ( right click> open with.... or Mount ) and will mount it so it appears like a DVD Drive and from there you can copy everything to a Fat32 Formatted USB Drive ( I find USB2 Drives work best as bootable drives ) mark the Drive Active if it is to be a booted on a legacy Bios , UEEFI Bios dont require this.

KB

 

ive obviously already made sure bootorder is correct. also there is less volumes than disks, i have 4 hdds split across 2 raids, and two ssds with only one volume (partition) per. (besides recovery partition that windows create on your systemdisk).

currently copying over files from sysdisk to other disk before proceeding with troubleshooting.

 

NO Problem , the advice above was for Jimbo and others.....just thought I'd mention the boot Order as another User hadn't checked in another thread and that was all it was....

KB

 

Above command will list files stored within RegBack folder and there file size, make sure files are not zero size if they are do not follow below instructions.





Please replace partition letter C: with Windows installed partition letter. When computer boots into Windows Recovery Environment (WinRE) environment the drive letter assign to Windows partition may not be C: drive letter because Windows 7, 8 , 8.1 and 10 creates a separate system partition when it's installed from scratch. The system partition contains boot files WinRE assigns the system partition the C: drive letter and the Windows installed partition will be assign any other drive letter usually D: drive letter is assign to Windows installed partition. The Bcdedit /enum | find "osdevice" command can be use to find out the drive letter of the Windows installed partition the output of the Bcdedit command is similar to this osdevice partition=D:. The drive letter after partition= is the drive letter of the Windows partition.

Please type below commands into Command Prompt and for each command you have typed press Enter key.



Code: Ren C:\windows\system32\config\SAM SAM.BAK Ren C:\windows\system32\config\SYSTEM SYSTEM.BAK Ren C:\windows\system32\config\SECURITY SECURITY.BAK Ren C:\windows\system32\config\DEFAULT DEFAULT.BAK Ren C:\windows\system32\config\SOFTWARE SOFTWARE.BAK Copy C:\Windows\System32\config\RegBack\SAM C:\windows\system32\config Copy C:\Windows\System32\config\RegBack\SYSTEM C:\windows\system32\config Copy C:\Windows\System32\config\RegBack\SECURITY C:\windows\system32\config Copy C:\Windows\System32\config\RegBack\DEFAULT C:\windows\system32\config Copy C:\Windows\System32\config\RegBack\SOFTWARE C:\windows\system32\config[/quote]
This procedure assumes that Windows Vista/7/8/8.1/10 is installed to the C:\ partition. Make sure to replace C:\ drive letter to the appropriate Windows OS installed partition drive letter if it is a different location.


Above commands renames the registry files at their existing location, and then copies the registry files from the RegBack folder to the C:\Windows\System32\Config folder.[/quote] Completed these steps, boot into a BCD bsod with error code 0xc0000098

sadly i do not have a cd/dvd reader, a spare USB or a spare PC so i cannt obtain a macrium repair thing.

*Sad

on a second restart attempt i was back to the inaccessible boot.

im giving up and reinstalling the entire OS and will forever hate microsoft for bricking my PC with zero penalties. unbelievable they can mess up an update so it bricks peoples pcs and they dont have to pay for it at all.

corporate controlled politics is shit

thanks all for trying to help, sadly none of us could rival the gross incompetence of microsoft engineers

 

this must be a joke.

i just reinstalled windows and it literally boot into missing BCD. how is that even possible when i made a fresh windows install?!?! what a joke!

edit:

after a second windows install it now boots. wish me luck with the countless hours of configuring i need to do to get back to where i was before.

huge thanks to @FreeBooter and the others who tried to help. being willing to help strangers for free shows what great people you are. i wish you happiness and luck in life.

 

Did you make sure the Drive was Clean with DiskPart before you reinstalled ? sounds a bit weird for sure...

Good luck....

 

For the clean install > install all applicable drivers > install browsers and applications > restore files > allow a few days to generate logs > run this log collector and post a zip for troubleshooting > log collector v2-beta08.zip

Run HD Tune on the drive:
HD Tune website
Health (SMART)
Benchmark
Full error scan
Post images of the three tests into the thread.

Open administrative command prompt and type or copy and paste: chkdsk /x /f /r
This may take several hours.
Find the chkdsk report in the event viewer and copy and paste to notepad > save to desktop > post into the thread with one drive or drop box share link
Read Chkdsk Log in Event Viewer in Windows 10 Performance Maintenance Tutorials

 

Thank you very much @fullofdespair.

We are glad to hear your issue has been resolved, thank you for letting us know that all is now well!