Monday, November 2, 2009

Memory Tweaking in Windows XP


The System Registry contains several settings which allow you to further configure memory management features in Windows XP. There are some of the registry tweaks available to improve your Computer’s memory performance. Before we move ahead, I will again suggest you to take a back up of registry, so that if anything goes wrong, you can always revert back to the old registry. If you want to know how to take a back up of registry, then go through my previous posts. To open the Registry Editor in Windows do the following:


Click Start, and then click Run. Type regedit.exe in the Open box, and then click OK.
Here we need to change the values of some of the registry keys on the right hand side of the screen. To edit the values of any of the keys, you can either double click on it or else you can right click on the entry and select Modify.


Now with the Registry Editor open navigate to the following key: 
HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Control \ SessionManager \ Memory Management


1.  Now on the right hand side of the screen, scroll down to DisablePagingExecutive and change the value to 1 in decimal and click on OK.  

          2.  Then scroll down to LargeSystemCache and change value to 1 in decimal and click OK.


          3. Create a new DWORD Value and name it IOPageLockLimit. Double click on it.
          (a) If RAM is 128 MB, set the value to 4000 (Hex).
          (b) If RAM is 256 MB, set the value to 10000 (Hex).
          (c) If RAM is 512 MB or greater, then set the value to 40000 (Hex) 

          4. Now on the right hand side of the screen, scroll down to ClearPageFileAtShutdown and change the value to 1 in decimal and click on OK. 


         After all these settings, you need to restart the computer for the changes to come into effect. 





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