topgundcp said:
Rebuild the Recovery partition is a simple process.
  1. Use diskpart to create the partition:
    diskpart
    list volume ===> identify the volume # for C drive
    select volume # ===> where # found from above
    shrink desired=529 ===> the Recovery partition for Win10 ver. 1909
    create par pri
    select partition # ===> the number of the partition just created
    format fs=NTFS quick label=Recovery
    set id=DE94BBA4-06D1-4D40-A16A-BFD50179D6AC ===> Id for Recovery type
    gpt attributes=0x8000000000000001
    exit
  2. copy WinRE.wim and the uninitialized ReAgent.xml files from the installation Media to C:\Windows\System32\Recovery
    - Mount the Installation ISO. If already mounted, Under Sources folder, Use 7-zip to open either install.esd or install.wim then navigate to Windows\system32\Recovery then copy both files
    NOTE: the install.esd or install.wim might contain multiple editions of Windows, just use any index. Also Recovery folder is hidden, you'd need to set the option to show hidden.
  3. From Admin command, run reagentc /enable. This will move WinRe.wim to the Recovery partition and set the GUID and location in ReAgent.xml
Had an issue with Windows Update today that was related to the Recovery partition that I discovered was not on my Win 10 PC. These instructions worked well with the exception that the two lines above in red returned an error. I just skipped them. In the end reagentc /info showed the Recovery partition to be active.