Windows 10: Inaccessible boot device - after windows update (regular update)

https://drive.google.com/file/d/1oWa...w?usp=drivesdk

 

If you don't have Windows 10 Installation DVD then click "Advanced Options" from Automatic Repair screen this will allow you to use tool at Windows Recovery Environment (WinRE) environment.

Click Troubleshoot link.




After you click Troubleshoot the Troubleshoot screen appears.





Reset your PC: Reinstall Windows OS using the installation DVD or factory recover image on the hard disk drive but removes all personal data, apps, and settings from the PC.

In Windows 10, Reset your PC gives you two option they are:

Keep My file: Removes apps and setting, but keeps your personal files.

Remove everything: Removes all of your personal files, apps and settings.


Click “Advanced options” on the Troubleshoot screen to access more WinRE recovery utility’s in “Advanced options” screen.





If you have not try below tools.

System Restore : Restores Windows OS to a previous state that was without any system errors.

Automatic Repair (Startup Repair) : Windows will attempt to diagnose and correct common boot problems It corrects issues, such as corrupt registry hives, missing system files and drivers, disk boot sector corruptions, and other startup issues.



From Windows Recovery Environment start the Command Prompt.

Please type below command into Command Prompt and press Enter key.

Following command will fixes errors on the disk and locates bad sectors and recovers readable information.


Code: Chkdsk D: /r[/quote]

Please replace partition letter D: 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.



From Windows Recovery Environment start the Command Prompt.

Please type below command into Command Prompt and press Enter key.

The following command scans integrity of all protected Windows system files and repairs files with problems when possible.

Code: Sfc /Scannow /OFFBOOTDIR=D:\ /OFFWINDIR=D:\Windows[/quote]

Please replace partition letter D: 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.




From Windows Recovery Environment start the Command Prompt.

Please type below commands into Command Prompt and press Enter key.

Following commands will repair Master Boot Record (MBR), Boot Sector and BCD Store.


Code: Bootrec /FixMbr Bootrec /FixBoot Bootrec /RebuildBcd[/quote]
If you can please post a screenshot of above three commands output.


Restart your computer to see boot issue resolved.

 

Once the above commands are successful perform the following steps:

1) create a brand new restore point
2) backup all files to another drive or to the cloud
3) make a backup image using Macrium:
Macrium Software | Your Image is Everything
Backup and Restore with Macrium Reflect Backup Restore Tutorials
4) If the above commands do not fix the inaccessible boot device there are additional troubleshooting steps

 

Thanks, I started chkdsk command you stated shows about 25:37:22 as in 25 hrs does that sound correct?

 

Far as i can remember check disk command does not display how long error scan will take but it should show how long it has been scanning for errors.

 

When running chkdsk from administrative command prompt chkdsk commands often will rise quickly to a percentage number in the low teens and then remain there until the command has completed.
When running chkdsk commands from the windows PE or RE environment it typically displays the estimated time.
That is a lot of time. On a 750 GB drive it took approximately 4 hours.
The duration of the time will depend on the size of the drive, the findings and the available space.


What is the size of the drive on the computer?
When available please post a URL or hyperlink for the computer (drivers webpage)

 

I have 640 gb hd. HP Pavilion p6228p Desktop PC Product Specifications | HP® Customer Support

 

Check Disk with the Recover/Repair option ("chkdsk <drive> /R") option will take many hours to finish.

 

The latest drivers/bios were for windows 7: HP Software and Driver Downloads for HP Printers, Laptops, Desktops and More | HP® Customer Support

For HP UEFI hardware diagnostics the latest version is 6.5 or 6.6.
This version requires a windows download and install.

There is a version for a USB drive.
And there is a version for a default installation.

When the chkdsk has completed please run the HP UEFI diagnostics that are already on the computer.
Power on the computer and repetitively click the F2 key.
This should open the BIOS.
If there is an extensive or loop until failure test run this test overnight.
If there is a problem the test is designed to abort and display an error code.
If the loop until failure is running the next day press the keyboard escape key to abort the testing.
View the results in the BIOS UEFI hardware log to confirm the pass test result.

If the HP UEFI diagnostics on the computer do not exist or have minimal tests find a flash drive that you can format.
Create a HP UEFI hardware diagnostic flash drive and test the hardware.
Report the results into the thread.
HP PC Hardware Diagnostics | HP® Official Site

Once there is a working operating system download and install the most up to date HP UEFI diagnostics and run a loop until failure test.

 

If Chkdsk command going to take 25 hrs then you might as well cancel Chkdsk command as your hard disk drive is probably failing i have run Chkdsk command on 2TB HDD and this is the estimated 3:00:15 time, this hard drive is external and connected to USB 3.0 port.

 

Thank you so much for the help. How do I cancel chkdsk, if I stop in middle it won't cause a problem correct? Also I put d drive for checking chkdsk, I should have verified the drive os as suggested. I also want to take the time to thank you fine people, it is so nice if you to help, very grateful.

 

You can press Ctrl + C keys at Command Prompt to stop Chkdsk command.

I'm not sure you can execute below command from Windows RE but lets try it and if you can post a screenshot of the output of the command.


Code: wmic diskdrive get status[/quote]

 

I am working on running the 3 commands boot free gave, bootrec / fix mbr, fix boot, rebuild bcd if I do this after the scan will it mess up the disk, I want to fix it but worst case I want to make sure I can still access my files to backup via a slave drive as backup.

 

You can backup your personal files by executing Notepad from Command Prompt. From Notepad click File from menu bar and select Save this will open a File Explorer where you can copy and paste your personal files to connected storage drives.

 

There is an additional option that can fix the recent problems with inaccessible boot device and that is to revert pending actions.
Let us know the outcome of the present commands.

The drive can be removed from the computer and placed in a drive enclosure or placed into another computer. Then you can run chkdsk /x /f /r to evaluate and fix the drive.

An additional option is to use a boot rescue drive and test the drive.

Let us know your progress.