The following are the contents of my own tweak file, which includes all the TCP parameters to achieve full compliance with RFC 1323, and make the best use of it, as well as 879, 2018 and a few others.
Section 1 - TCP parameters will set a lower default for TimeTo Live, higher receive window buffers, Selective Acknowledgements turned on, and only allow for blackhole discovery but not its detection.
Section 2 - make available more layer 4 sessions for Internet Explorer so it will not lock up
Section 3 - DLL Cache - define upper limit of 256 MB so it will not eat up large portions of disk, as well as to avoid tothe extent possible duplication
Section 4 - DNS Cache - better, more efficient handling
Section 5 - I do not trust Micro$oft to keep my time. I'd rather go to the US Navy's Atomic clock directly through NIST in Gaithersburg, MD.,
Section 6 - the Windows Antivirus, firewall notification and nagware. My systems were secure from virii and intrusions even before Micro$oft thought about these issues. I like my own solutions better than what Micro$oft has made available with their unreasonable default settings.
As always, backup your registry before making any changes to it. these settings may not hold for every system, but by and large, they will optimize performance on most. There is no compulsion to use this information.
I did leave out a copule of settings which I use, those pertain to the Micro$oft Office tuneup feature, which I believe Micro$oft is no longer pushing to the systems which the software is installed on. If yah think installing Office or any of its components has slowed your system down, let me know, and I will be happy to show how to turn off the Office TuneUP thing which is a pain and consumes more resources than it frees. As usual, the person who designed it is no longer employed at Micro$oft.
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Tcpip\Parameters]
"SackOpts"=dword:00000001
"TcpWindowSize"=dword:0008E940
"Tcp1323Opts"=dword:00000001
"DefaultTTL"=dword:00000030
"EnablePMTUBHDetect"=dword:00000000
"EnablePMTUDiscovery"=dword:00000001
"GlobalMaxTcpWindowSize"=dword:0011D280
[HKEY_USERS\.DEFAULT\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"MaxConnectionsPer1_0Server"=dword:00000020
"MaxConnectionsPerServer"=dword:00000020
[HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Internet Settings]
"MaxConnectionsPer1_0Server"=dword:00000020
"MaxConnectionsPerServer"=dword:00000020
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]
"SFCQuota"=dword:00000100
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Dnscache\Parameters]
"NetFailureCacheTime"=dword:00000000
"NegativeSOACacheTime"=dword:00000000
"NegativeCacheTime"=dword:00000000
[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Parameters]
"NtpServer"="time.nist.gov,0x1"
"Period"=dword:00000000
[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Security Center]
"AntiVirusDisableNotify"=dword:00000001
"AntiVirusOverride"=dword:00000001
"FirewallDisableNotify"=dword:00000001
"FirewallOverride"=dword:00000001
"UpdatesDisableNotify"=dword:00000000