83. Keep Windows operating data in main memory

Windows XP contains several tweakable memory settings in the registry, one of which is the DisablePagingExecutive registry key. This controls whether the operating system will transfer its essential driver and kernel files to the 'virtual memory' (the page file on the hard disk). It defaults to allowing this.

Obviously, transferring portions of the system to hard drive memory can considerably slow things down, and it appears that Windows XP does this periodically, whether or not the system is actually low on physical memory (RAM). If you have 256MB of system memory or more, try this registry tweak to force Windows to keep its operating data in main memory:

Open Regedit.

Navigate to HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Control\Session Manager\Memory Management.

Select the DisablePagingExecutive value to '1'

84. Disable the DOS 8.3 naming convention to save system resources.

Windows XP uses two different names for each and every file on your system. One is the name that you see in explorer and in the command prompt, and the other is an MSDOS compatible 8.3 (8 character title followed by a '.' Then three more characters to indicate the type of file) name. If you are intending to run DOS only software, or connect to pre-Windows 95 computers, you will need this second set of names. If not, you are simply wasting resources. To disable the 8.3 naming convention:

Open REGEDIT

Navigate to HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\FileSystem

Change the value of the NtfsDisable8dot3NameCreation key to '1'

85. Stop the 'last access update' from taking up system resources

Every time a directory on an NTFS drive is accessed by Windows XP, it updates that directory and every subdirectory with a time stamp to indicate the date of access. In folders with a lot of subdirectories, this can add considerable overhead to whatever your PC happens to be doing. This process can be disabled through the registry:

Open REGEDIT

Navigate to HKEY_LOCAL_MACHINES\System\CurrentControlSet\Control\FileSystem.

Create a new DWORD value called 'NtfsDisableLastAccessUpdate' and set the value to '1'

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