Windows 10: Toshiba not booting past recovery screen.

My Toshiba Satellite C70D laptop won't boot past the recovery mode. The night before it 'died' I was trying to save a doc and it said I didn't have permissions to save to the folder and that I had to be an Admin (which I am). The next morning I woke to a black screen. Did what I guess you'd call a hard restart? (pressing power button till it switches off) and it came up doing the Recovery Mode but then went black again after a minute or so (the numlock key is still lit).

I've tried various rescue disks but it never seems to find a CD rom to boot from and the only USB info it will pick up is a Windows 10 image I created off my pc. It goes to load the files. I see the small blue windows logo as though it's going to work and then it just goes black again. I've got the boot order to USB, CD and then HDD. It has come up (can't remember how I got to it) saying I was missing or have a corrupt msachi. Sys file.

I should add the only way I've managed to get that far is by using csm boot mode and not uefi.
Any ideas on how I can save this please?

Thank you very much.

:)

 

How does Windows boot to advanced recovery option e.g. command prompt?

- that gives me a 454 'Unexpected error' This tells me that the BCD is partially corrupted.

The commands: shutdown.exe /r /o /f /t 00
or: %SystemRoot%\System32\Cmd.exe /c reagentc /boottore&shutdown /r /f /t 00
should boot into Recovery if everything is configured correctly.
FYI, If Windows is configured correctly:

1. If Reagentc is disabled, you still can get into Recovery but with limited options.
2. If Reagentc is enabled, you'll get all options.
3. If you boot Windows using Recovery USB stick, You'll get into Recovery with couple of options missing.

Here's my suggestion if you want to try:
OPTION 1: Will save the trouble of re-install Windows.

1. Download the image of my first 3 partitions (450MB Recovery, 100 MB EFI partition, and 16MB unformatted primary)
   EFI_Boot-00-00.7z - Google Drive
2. Run Macrium and restore the image from step 1, overwriting your existing 1st three partitions, leaving C alone.
3. Delete the 490MB Recovery partition.
4. From Macrium, run fix boot problems.
5. Reboot. Open Admin command prompt then run Reagentc /info to make sure that it is enabled. If not, enable it.
   if failed to enable, reboot and try again.

OPTION 2: Assuming you've already had Windows backup with Macrium.

1. Wipe out the first 5 parttiions. (450MB, 100MB, 16MB, C Drive, 480MB)
2. Fresh install Windows 10
3. Restore C drive from backup image, run fix boot problems
4. repeat step 5 from OPTION 1 above.

 

How does Windows boot to advanced recovery option e.g. command prompt?

Hi, @topgundcp

- that gives me a 454 'Unexpected error'

Yes

The command to set the recovery partition to partition 5 fails, as WINDOWSRE does not exist under RECOVERY

 

My pc does not get past the Mfr name in booting up

Hi Bill,

There may have been changes with the system that's why you are unable to get past the manufacturer screen when you boot up the PC. It's important we look into the possible causes to come up with the best resolution to the problem. Please answer these questions:

• Did you make any changes on the computer before this started?
• Did this start after installing updates?

You can try removing all peripheral devices connected to your computer and see if there will be any changes when you boot it up. It is possible that the driver of the external device prevents your computer from booting up correctly.

You can also access the recovery environment in Windows 10 and try one of the available options to repair your system. The different options are explained on this

page.

Since you are unable to log in to Windows, follow these steps to access the recovery environment:

• Restart the computer while holding down the Shift key on your keyboard.
• If the first step does not work, you can force the computer to shut down by pressing the power button or unplugging the power cord when you boot it up. This process may need to be performed a few times before you get to the recovery options.

Let us know if the suggestions above allow you to get back into your computer.

Feel free to post your questions if you have any.

We're here if you need more help.