Server 2008 R2 Slow startup while applying computer settings
I’ve had some trouble with slow logon on Windows Server 2008 R2. The “Applying Computer Settings”-part takes about two minutes!
The eventlog shows two records about this issue:
The winlogon notification subscriber <GPClient> is taking long time to handle the notification event (CreateSession).
And:
The winlogon notification subscriber <GPClient> took xxx seconds to handle the notification event (CreateSession).
I stumbled upon some possible solutions. The first was updating the NIC driver. As I’m using the wireless network card, I’m only updating this one.
Updating NIC driver
Old driver:
New driver:
Drivers are updated but the logon time wasn’t reduced by a single second. 
Disable Computer GPO’s
Second try was moving the computer object to a unmanaged OU (without policies applied), run gpupdate /force and rebooted some times .. but the problem still exists.
GpNetworkStartTimeoutPolicyValue
Third try: adding GpNetworkStartTimeoutPolicyValue with value 1 to the registry:
Maybe it’s a service or application on the computer itself .. ? I disabled some 3rd party (non Microsoft) services, but the problem remains.
Disable IPv6?
–> no luck
Disable CardReader?
–> no effect
Disable Autotuning?
netsh int tcp set global autotuninglevel=disabled
Didn’t solved it either, so I enabled Autotuning again:
netsh int tcp set global autotuninglevel=normal
Patches/Hotfixes?
KB2617858: Unexpectedly slow startup or logon process in Windows Server 2008 R2 or in Windows 7
KB2525332: You encounter a long logon time after you enable the "Do not automatically make redirected folders available offline" Group Policy setting in Windows 7 or in Windows Server 2008 R2
–> This hotfix fixes the slow logon issue for me! (I’m using redirected folders!)