after update cannot access partition encrypted by bitlocker windows10pro

optimum 1 Reputation point
2021-03-22T21:09:04.437+00:00

following update KB5000802 windows starts and cannot access D partition "location is not available" "access is denied". after opening the D partition with file-explorer and entering the key for bitlocker, then access is granted to partition D. Rolling back the update using a restore-point, did not help. Windows will restart and cannot access the user account (i.e. D:\users\owner\desktop is not accessible) until entering the key for bitlocker thru file-explorer. help appreciated. tnx

Windows 10
Windows 10
A Microsoft operating system that runs on personal computers and tablets.
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  1. Teemo Tang 11,021 Reputation points
    2021-03-23T02:22:47.453+00:00

    Uninstall KB5000802 from Control Panel.
    Then decrypt your D partition with recovery key.
    Restart computer and manually the latest March 18, 2021—KB5001649. Re-encrypt your D partition.
    After encryption complete, restart and check access permission.

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  2. optimum 1 Reputation point
    2021-03-23T06:32:09.457+00:00

    kb5000802 appears in the update history but NOT in the list shown under "uninstall a program", so i guess kb5000802 was removed when i rolled back using the restore point. wonder why rolling back to pre-kb5000802 did not fix the bitlocker issue?
    KB5001649 was not installed/suggested by windows to my computer (no printing issue)
    how/should i install it ? 10x