After Windows 2000 is installed, some hidden shares are created and we see these shares through the "net share" command: admin$,ipc$,c$,d$,e$ ... These default shares can be stopped by the "sharing" command on the right-click menu, but are automatically restored after the system restarts. For system security, we should completely remove these default shares immediately after Windows 2000 is installed.
If you want to prohibit sharing of C $, d$, and e$, you can click the start → Run command, type "Regedit" in the Run window, and then enter to open Registry Editor. Expand sequentially [Hkey_local_machine\system\current-controlset
\Services\LanmanServer\Parameters] Branch, set the DOWRD value "AutoShareServer" to "0" in the right window.
If you want to prevent admin$ sharing, you can set the DOWRD value "AutoShareWks" in the right window to "0" under the same branch.
If you want to prevent ipc$ sharing, you can expand the [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa] branch in Registry Editor, and then the DOWRD value in the right window RestrictAnonymous "Set the value to 1".