We set an AUTOBOOT using TPM on Windows 10 (user don't see the preboot screen) in our environment.
Last months after installation of Windows update is shown the preboot screen (after second restart after installation of updates). Problem is, that on Windows 10 with autoboot not work Windows Password sync with MDE password.
Does anybody know, why it isn't working?
Please, could anybody help? It is urgent problem.
MDE version: 7.1.3
ePO: 5.1.3 (build 188)
VSE: 8.8. P8
Sorry for using this old thread. We do have the same issue and I can`t see a solution there.
We are using the following:
MDE version: 18.104.22.168
MA agent: 5.6.2
It seems to me, that password synchronisation between Windows and MDE doesn`t work anymore when TPM is used for pre authentication.
And after a major update to Windows, TPM measure will fail (as designed) and PBA screen will be shown. But since passwords are not synced user can only authenticate with a old password or doesn`t remember it and need to be recovered.
moving this to encryption team where it belongs.
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Hi @psobotka ,
Thank you for writing in here.
Since you are using Autoboot feature, as soon as the machine is installed with MDE and restarted the PBFS would be created with users assigned to the PBFS, however, these users need to be initialized in the first place for password sync features.
User Initialization can only happen at the MDE PBA screen.
Since you have auto-boot enabled, MDE PBA screen is not displayed at all from the first, so user initialization does not happen at all. And when there is a windows upgrade which makes the TPM measurements to fail, MDE PBA screen appears. Now the user tries to enter his username and his windows password or any other password. Definitely you will get the failed to authenticate messages on the PBA screen.
At this case, since the user is not initialized, advise the user to use the mcafee default password (12345 or 1234567) mentioned in the product guide to initialize the user account, post this the user would be advised to enter a new password and confirm password, which can be their Windows account password.
Post user Initialization, MDE password sync will happen regularly. So before provisioning the machines to the end-users, kindly make sure that these users are initialized at the PBA.
Important Note: Kindly upgrade to MDE 7.2.7 and above which has many password sync issues resolved.
Kindly let me know if you have any further questions on the above
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