Windows 10: ReAgentC cannot unmount recovery image after applying update package

Hi there,I recently updated my Windows recovery image as per the instructions here, and everything has went smoothly so far, but when trying to unmount my recovery image to complete the process:reagentc /unmountre /path C:\mount /commitI get an error:REAGENTC.EXE: Operation failed: 70 REAGENTC.EXE: An error has occurred.Even after rebooting, the recovery image stays mounted to C:\mount on my machine. I have heard that I may need to potentially increase the size of my Windows recovery partition; is this really the case?

:)

 

ReAgentC will not enable

Oh derp!

Copying the Recovery folder from a known-good-working computer and pasting it to the not-working computer does not work. C:\Windows\System32\Recovery\ReAgent_Merged.xml1 file is custom created on-the-fly for each machine.

1. Check to see if Windows\System32\Recovery\ folder exists;
   • if N skip to next step;
   • if Y rename it RecoveryBUP or something similar, then continue;
2. using 7-Zip or similar navigate the installation media to ...\Sources\ install.wim or install.esd
3. double-click either and go to ...\1\Windows\System32\
4. click the Recovery folder and tell 7-Zip to extract it to the target machine at C:\Windows\System32\;
5. reboot
6. Go to Settings > Update & Security > click Recovery in the left menu list;
7. under Advanced startup click Restart now
8. You should now see the full Recovery console like this:

MBR2GPT.EXE is a Microsoft program included free in Windows. If running Windows 10 v 1803 or later and the objective is to convert MBR to GPT with NO data loss, MBR2GPT.exe will do that. It is fast and works well. MS posted a video of it in use at their site. There is also an updated step-by-step tutorial at WindowsCentral with pictures. The steps follow:

In order to enable UEFI on a UEFI-able system that has been using BIOS because it was running Windows 7 or some such, the MBR (master boot record) first must be converted to GPT (GUID partition table):

• click Command Prompt in the Recovery Console to open an elevated command prompt without the Windows GUI;
• that should bring you to C:\Windows\System32;
• type MBR2GPT.exe /validate;
• type MBR2GPT.exe /convert and await the successful conversion;
  • there may be an error message about reagentc.exe, you can ignore that until after you change the CMOS/BIOS settings

now change BIOS to UEFI:

• reboot and tap F12 continuously before the Windows logo appears (or whatever key your device requires to enter the BIOS settings)
• change boot to UEFI from BIOS & reboot
• DONE

Now, ensure the Recovery console is as you want it...

1. In Windows launch an elevated command prompt and navigate to C:\Windows\System32
2. type reagentc /info and tap [enter], if disabled
3. type reagentc /enable and tap [enter]

RESOLVED & DONE with much thanks to SIW2 and NavyLCDR!

 

[HELP]Image recovery issues

Guys i am trying to fix my cousins Asus Eee netbook. It has a backup image file that is partitioned on the hard drive but when I go to use it the app will run through a few steps and stop. It is running Vista . Any suggestions?

 

Reagentc failed

Empty recovery image location string. Setting image path before winre enabling needed.
perform these steps:

1. set drive letter to recovery partition
2. reagentc /setreimage /path F:\Recovery\WindowsRE
...winre.wim registration (use proper drive letter)
3. reagentc /enable
...winre activating
4. remove drive letter from recovery partition

Can't enable Windows Recovery Environment