Disable Kernal Paging to Speed Up Windows
By Stephen Bucaro
Modern operating systems use a memory management scheme called "paging". To
increase the amount of memory, the operating system allocates part of the hard disk
as "virtual" or "pretend" memory. A "Page" is a chunk of data that is moved from RAM
to virtual memory in order to make room for programs or data being moved into RAM.
When data in virtual memory is needed back in RAM, another page swap occurs.
Although "paging" allows the operating system to function as if it had much more
RAM installed than it actually has, the hard disk is much slower to access than
real RAM. The Windows operating system itself is slowed by paging. You can speed
up Windows by configuring it to keep the "kernal", or "heart" of the Windows
operating system in RAM.
- in order to actually realize a speed improvement using this technique, you must
have sufficient RAM installed in your computer; 256 MB or more.
Setting the DisablePagingExecutive key in the registry to a value of 1 instructs
Windows to keep the "kernal" in RAM. Below is a simple script you can use to check
and configure the DisablePagingExecutive key.
Dim wshShell, RegKey
Set wshShell = Wscript.CreateObject("Wscript.Shell")
RegKey = "HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management\"
If wshShell.RegRead(RegKey & "ClearPageFileAtShutdown") Then
If MsgBox("ClearPageFileAtShutdown = 1, Set to 0?", vbQuestion + vbYesNo, "DisablePagingExecutive") = vbYes Then
wshShell.regWrite RegKey & "DisablePagingExecutive", 00000000, "REG_DWORD"
If MsgBox("ClearPageFileAtShutdown = 0, Set to 1?", vbQuestion + vbYesNo, "DisablePagingExecutive") = vbYes Then
wshShell.regWrite RegKey & "DisablePagingExecutive", 00000001, "REG_DWORD"
Paste this script into Windows Notepad and save the file with the name "kernalram.vbs".
Double click on the file name to execute it and a popup message box will display the
value of the DisablePagingExecutive key on your computer and ask if you want to change it.
If the DisablePagingExecutive key is set to one, clicking on the "Yes" button will change
it to zero. If it's set to zero, clicking on the "Yes" button will change it to one.
When you restart Windows, the new configuration will take effect.
Note: The script in this article is provided AS IS without warranty of any kind.
Bucaro TecHelp disclaims all implied warranties including, without limitation, any
implied warranties of merchantability or of fitness for a particular purpose. The
entire risk arising out of the use of the script remains with you. To be safe, you
should make a backup copy of your computers registry before using this script. In
no event shall Bucaro TecHelp be liable for any damages whatsoever arising out of
the use of or inability to use this script.
More Windows Administration Information:
• Msconfig - Microsoft's Secret Weapon to Increase Your Computer's Speed
• Video - Microsoft Remote Desktop - Part One
• Network Security Through the Principle of Least Privilege
• How to Setup DHCP (Dynamic Host Configuration Protocol) on a Windows Server
• Use PowerShell and WMI to Get CPU Information
• What is Windows Aero and Mouse Gestures?
• Windows PC Performance Troubleshooting and Optimisation
• To Protect Your PC Disable the Windows Scripting Host
• Is Your Critical PC Data Adequately Protected From Disaster?
• Recovering an Older Version of a File