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Keepassx on windows12/31/2023 Verify that the WUA Master Keys from the old WUA were moved out of the folder that was created in Section (3) step 2.Enter the old WUA password if prompted for it. Open a command prompt and run the utility:Ĭ:\windows\system32\dpapimig.exe.After proceeding a confirmation dialog that the keys have been added to the registry will be displyed. Rename DPAPI_ to DPAPI migration.reg and run it (double click on the file).Edit the attached file: DPAPI replacing every instance of and with the SID and username of the old WUA.Add registry keys needed by the DPAPI migration utility.Copy the WUA Master Key folder from Section (2) step 3 to the following directory in the temporary WUA: %APPDATA%\Microsoft\Protect\ Verify that the number of WUA Master Keys in the folder matches the number that was copied in Section (2) step 3. Create a temporary WUA and log in to it.Section III - Add the WUA Master Keys used by the old WUA to a temporary WUA. Copy the ProtectedUserKey.bin file (DPAPI blob) located in theĬ:\Users\\AppData\Roaming\KeePass\ directory of the old WUA.Count the number of WUA Master Key files in the folder. The SID folder will contain one file called 'Preferred' and one or more WUA Master Key files with names likeī8d158ae-b61b-4987-9326-962ed2654c17.If there is more than one SID folder, figure out which is the SID folder of the old WUA and copy it. There will likely be only one "SID" folder in the "Protect" folder.Copy the WUA Master Key folder: C:\Users\\AppData\Roaming\Microsoft\Protect\\, where is the username and is the SID of the old WUA.Obtain the password(s) and username(s) of the old WUA.Copy the KeePass database to be recovered and if one is used, its associated key file.Section II - Collect files and data from the old (non-operational) WUA. These keys are different from the KeePass database Master Key. WUA Master Key(s) are the Master Key(s) for a WUA.Uncheck 'Hide protected operating system files (Recommended)'.Uncheck 'Hide extensions for known file types'.Check 'Show hidden files, folders, and drives'.Select 'Tools>Folder Options>View(tab)' from the folder options dialog box.If the Menu bar is not displayed press the 'Alt' key to display it.press Win-E, or type explorer.exe in the Windows Search Bar) Configure Windows File Explorer to show hidden and system files, and file extensions.The procedure was developed based on the description of DPAPI in Recovering Windows Secrets and EFS Certificates Offline by Elie Burzstein and Jean Michel Picod (2010) and the Microsoft Technet article How to recover a Vault corrupted by lost DPAPI keys. It is strongly recommended that a temporary WUA be used for the KeePass database recovery. The procedure is not suitable for permanently moving the database and retaining the old WUA Master Key component because it will break preexisting databases in the account where the recovery was performed, if the preexisting databases include a WUA in their Master Key. This database recovery process has not been tested for all cases, one case that has not been tested is where the old WUA password or username was changed after the ProtectedUserKey.bin file (DPAPI blob) was created. Once a database is recovered its Master Key can be changed to remove the original WUA key component. The procedure may be adaptable to a domain WUA but it has not been tested. The database recovery process below may be used to temporarily recover a KeePass database whose Master Key includes a non-domain WUA that is no longer operational. A Windows user profile has been damaged but the critical files can still be read, or a backup of the user profile is available.A Windows user profile has been deleted but a backup of the profile is available.A Windows computer is not bootable but the boot disk can still be mounted as data drive.It may be possible to recover a KeePass database whose Master Key includes a Windows User Account (WUA) if certain user data is available.
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