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"This account is disabled" OS login message after changing Full Disk Encryption policy to Bitlocker Technical Level
Symptoms
  • "This account is disabled" OS login message after changing Full Disk Encryption policy to Bitlocker.
  • The following can be found in 'C:\ProgramData\CheckPoint\Logs\dlog1.log':
    20201112 094440,183+0100 I LogonUI.exe:1968 Unable to get size of SID for account. Errorcode = 1789
    20201112 094440,379+0100 W LogonUI.exe:1968 [PWD] Account disabled - OneCheck did not find the user SID valid
    
Cause

OneCheck policy was enabled by default when switching Full Disk Encryption to Bitlocker.
OneCheck must be disabled for Bitlocker.
The credential provider was also not removed after switching to Bitlocker.


Solution
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