When you try to log on to a Microsoft Windows Server 2003-based terminal server, you receive the following error message:When this problem occurs, the following events are logged in the Application log on the terminal server.

Event ID 1505

Event Type: Error
Date: date
Time: time
Event ID: 1505
Source: Userenv
User: Example\Username
Computer: ServerName
Description: Windows cannot load the user's profile but has logged you on with the default profile for the system.
DETAIL - Insufficient system resources exist to complete the requested service.

Event ID 1508

Event Type: Error
Date: date
Time: time
Event ID: 1508
Source: Userenv
User: NT AUTHORITY\SYSTEM
Computer: ServerName
Description: Windows was unable to load the registry. This is often caused by insufficient memory or insufficient security rights.
DETAIL - Insufficient system resources exist to complete the requested service. for C:\Documents and Settings\Username\ntuser.dat

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CAUSE

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You experience this problem if many users are logged on to the terminal server.

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Important This section, method, or task contains steps that tell you how to modify the registry. However, serious problems might occur if you modify the registry incorrectly. Therefore, make sure that you follow these steps carefully. For added protection, back up the registry before you modify it. Then, you can restore the registry if a problem occurs. For more information about how to back up and restore the registry, click the following article number to view the article in the Microsoft Knowledge Base:

To resolve this problem, modify the registry to increase the PoolUsageMaximum value and the PagedPoolSize value. To do this, follow these steps:

1.	Click Start, click Run, type regedit, and then click OK.
2.	Locate and then click the following registry subkey: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management
3.	On the Edit menu, point to New, and then click DWORD Value.
4.	In the New Value #1 box, type PoolUsageMaximum, and then press ENTER.
5.	Right-click PoolUsageMaximum, and then click Modify.
6.	In the Value data box, type 30, and then click OK.
7.	If the PagedPoolSize registry entry exists, go to step 8. If the PagedPoolSize registry entry does not exist, create it. To do this, follow these steps: a. On the Edit menu, point to New, and then click DWORD Value. b. In the New Value #1 box, type PagedPoolSize, and then press ENTER.
8.	Right-click PagedPoolSize, and then click Modify.
9.	In the Value data box, type ffffffff, and then click OK.
10.	Exit Registry Editor, and then restart the computer.

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For more information, click the following article number to view the article in the Microsoft Knowledge Base:

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