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Question

"Authentication failed, see inner exception" when doing a Bare Metal Restore from USB Recovery Media.

  • July 17, 2026
  • 26 comments
  • 1291 views

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26 comments

  • New Here
  • October 5, 2026

Sorry for post in french , english translate

Hello,

The solution is to use the winre.wim file provided with the official 26H2 ISO.

Using 7-Zip:

Right-click on the ISO, go to Source, then Find install.esd, and open it with 7-Zip.

Click on First Entry, then Windows\System32\Recovery, and copy winre.wim to the Temp folder.

Access the recovery partition (drive letter R:).

cd R:\Recovery\WindowsRE

attrib -h -s winre.wim

del winre.wim

Copy \Temp\winre.wim .

attrib +h +s winre.wim

Remove access to the recovery partition via R:.

Using Veeam, rebuild the recovery media. It will use the new 26H2 winre.wim file.

Now the restore works!