Local security could not be started because the user accounts database (NET.ACC) was missing or corrupted, and no usable backup database was present. THE SYSTEM IS NOT SECURE.
Any action to correct the problem should be performed on that computer. Local security could not start because the user accounts database file, NET.ACC, is missing or damaged and no backup file exists on the hard disk.
Restore NET.ACC from a backup. The backup file will be named either NET.ACC or NETACC.BKP. Then restart the computer. If there is no backup, reinstall LAN Manager using the Setup program.