JSI Tip 2712. Windows NT 4.0 roaming profiles don't load with errors 18 and 1009?

When you DeleteRoamingCache, some users may receive:

The Operating System was unable to load a locally stored profile. A new profile will be created. (1009).

The operating system was unable to load your profile. Please contact your network administrator. [18]

Using net helpmsg, we learn that:

18 is There are no more files and 1009 is The registry database is corrupt.

The registry size on the workstation is probably set too small.

NOTE: A registry size that is too small can also cause duplicate entries for roaming profiles in the HKEY_USERS hive.

To resolve the problem, logon as an account that doesn't use roaming profile and has administrative rights, such as Administrator. Then:

1. Use Regedt32 to navigate to HKEY_USERS.

2. Delete any duplicate SID. See tip 0295.

3. Use Control Panel / System / Performance / Virtual Memory / Change.

4. Set the Maximum Registry Size at least 2 MB greater than the Current Registry Size.

After closing, restart your workstation.