When you restart a domain controller running Terminal Server, your Admin$ and C$ shares may disappear?
If you try to create them in Windows NT Explorer, you may receive:
The share names admin$ and IPC$ are reserved and may not be used.
To workaround this problem:
1. NET SHARE admin$
2. NET SHARE IPC$
3. NET SHARE C$
4. Use tip 0096 to enable (set to 1) AutoShareServer and AutoShareWks.