after migrating from 16.x to 25.1 and uninstalling the old versions files and folders are missing
Windows Server
DLP 16.x, 25.1.
DLP installs now share the folder called account-storage. During the uninstall of the previous version that folder is being removed.
Before installing 25.1 make sure that the appropriate HF on 16.x is deployed.
16.1 already has the fix for this issue
16.0 RU2 - Install HF5 for servers before installing 16.1 or 25.1
16.0 RU1 - Install HF11 for servers before installing 16.1 or 25.1
16.0 GA - Contact support for hotfix release.