Hello,
You can try if below registry helps on the disk event id related registry change about HKLM\SYSTEM\CurrentControlSet\Services\LanmanServer after upgrade from 2008 to Server 2019:
- Examine the AutoShareServer and AutoShareWks registry values to make sure that they are not set to 0:
- Click Start, click Run, type regedit, and then press ENTER.
- Locate and then click the following registry subkey: HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\LanmanServer\Parameters
- If the AutoShareServer and AutoShareWks DWORD values in the LanmanServer\Parameters subkey are configured with a value data of 0, change that value to 1.
Note
If these values do not exist, you do not have to create them because the default behavior is to automatically create the administrative shares.
- Quit Registry Editor.
- Restart the computer.