Windows 2003 TS hangs on reboot

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One of our customers had a problem with Windows 2003 Terminal Servers that would hang on a grey screen before the logon prompt after a reboot, one of my colleagues got tsdiag.exe from Microsoft in order to diagnose the problem. After some research we discovered that the problem was resolved when the following reg keys are set:

DWordValue HKLM, “SYSTEMCurrentControlSetControlSession ManagerMemory Management”,”LargeSystemCache”, 0

DWordValue HKLM, “SYSTEMCurrentControlSetControlSession ManagerConfiguration Manager”,”RegistryLazyFlushInterval”, 30

DWordValue HKLM, “SYSTEMCurrentControlSetServiceslanmanserverparameters”,”Size “,3

Microsoft couldn’t explain why this could solve the problem but it did do the job. When you suffer the same symptoms please test these settings first before using this in a production environment.

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