Article ID: 243840 - View products that this article applies to.
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On a Terminal Server with Service Pack 4 (SP4) installed, Winlogon.exe may cause CPU usage to spike, causing delays when a user logs on. The spikes and delays vary with the number of profiles on the system. All logged-on users experience the delay when a user logs on.
To resolve this problem, obtain the latest service pack for Windows NT 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in the Microsoft Knowledge Base:
(https://support.microsoft.com/kb/152734/EN-US/ )How to Obtain the Latest Windows NT 4.0 Service Pack
Microsoft has confirmed that this is a problem in Windows NT 4.0 SP4, Terminal Server Edition.