Registry Home > Windows > System
Scripts
Enhancements and Settings for System Scripts
Services
Windows Service Settings and Enhancements
Windows File Checker
Enhancements for the System File Checker

Stop the system automatically rebooting after Windows Updates (Windows XP/Vista) New
Normally Windows Update will automatically reboot the system when you have your system configured to "Automatically download recommended updates for my computer and install them" and one or more of those updates requires a reboot. This settings changes the behavior so when users are logged in the system will not automatically reboot.

Disable Automatic Daylight Savings Adjustment (Windows NT/2000/XP)
Windows will normally attempt to automatically adjust the system clock for daylight saving changes based on the computer timezone. This tweak allows you to disable the automatic adjustment.

Change the Number of Page Table Entries (Windows 2000/XP)
Page Table Entries (PTEs) may become depleted or fragmented on systems that perform a large number input/output (I/O) actions. When they become completely depleted the system may show a Stop error and halt. This tweak allows you to increase the number of PTEs available on the system.

Control Microsoft VM Garbage Collection (All Windows)
This tweak allows you to specify the quantity of new memory that Java can consume before garbage collection is initiated. Garbage collection (GC) consumes a lot of system resources and can severely affect performance.

Change the Library Search Order (Windows 2000/XP)
This setting controls the order in which directories are searched for DLL (Dynamic Link Library) files. This may be useful to ensure that a local DLL is used when a program is being run over a network or to resolve issues where incompatible system DLL files are being loaded first.

Configure Windows Software Update Services (Windows 2000/XP) Popular
These settings allow you to configure Windows client machines to use custom Microsoft Software Update Services (SUS) located on an internal corporate network instead of the Windows Update Internet site.

Disable Update Device Driver Wizard (Windows 98/Me/2000/XP)
This tweak allows you to disable the ability to use Windows Update to locate updated drivers for hardware in Device Manager.

Increase the USB Polling Interval (Windows 98/Me/2000/XP) Popular
By default the USB polling interval is once every millisecond (ms). Even if no USB devices are connected the polling operation is still performed and the processor may not be able to enter power-saving state. Use this tweak to increase the polling interval.

Disable OS/2 and POSIX Subsystems (Windows 2000/XP)
To conserve system resources you may want to prevent the Windows session manager (SMSS) from loading any optional subsystems, such as OS/2 or POSIX. This tweak can be used to disable these optional subsystems.

System Board and Memory Optimizations (Windows 95/98/Me) Popular
These settings allow you to optimize the AGP and PCI buses along with the system memory by reducing the number of wait states (idle time).

Manage the CPU Task Priority (Windows 95/98/Me) Popular
This setting allows you to manage how the system processor should prioritize foreground and background tasks.

Manage Automatic Windows Updates (Windows 2000/XP) Popular
These settings can be used to configure how Automatic Updates are applied to the Windows system. It includes the ability to disable automatic updates and to set the installation schedule.

Increase Application Keyboard Response Time (Windows 95/98/Me)
When running more than one application at a time, you may find that your system's keyboard response is slower. To alleviate this, you can adjust the amount of time allocated to processing keystrokes.

Automatic Download of COM Components (Windows 2000/XP)
Windows can be configured to automatically download missing COM classes and objects over the network. This setting allows you to disable or enable this feature.

Hide Computer Management Option (Windows 2000/XP)
This setting allows you to remove the "Manage" option from the My Computer context menu. The Computer Management program is used to configure the system.

Change Power Management Configuration (All Windows) Popular
This parameter allows you to specify the primary role of the computer so that predefined power management configurations can be used. For example a laptop will have different power saving features than a home desktop PC.

Show Run in Separate Memory Space Option (Windows 2000/XP)
This setting controls whether the "Run in Separate Memory Space" option is shown in the Run box, which allows you to run 16-bit programs in a dedicated Virtual DOS Machine (VDM) process.

Modify the Paged and Non Paged Pool Memory Sizes (Windows NT/2000/XP) Popular
Windows normally calculates the paged and non paged pool memory sizes using complex algorithms based on physical memory size. These settings allow you to override and manually specify values.

Disable the Windows Key (Windows NT/2000/XP) Popular
This tweak disables the Windows key that is found between the Ctrl and Alt keys on a Windows enhanced keyboard.

Change Foreground and Background Task Priority (Windows NT/2000)
This setting is used to manage the relative priority between foreground and background applications, this is normally accessed through Control Panel > System > Performance.

Use an Alternative User Interface (Windows NT/2000)
This setting allows you to specify an alternate shell to use as the Windows user interface instead of the default explorer shell.

Control the Display of Popup Error Messages (Windows NT/2000/XP)
This tweak is used to control which error messages are displayed as popups, and also allows you disable the use of popup error dialog boxes entirely.

Configuring the Registry Size Limit (Windows NT/2000/XP) Popular
The Registry Size Limit, or RSL, controls the total amount of space the may be consumed in paged pool memory and disk space by registry data. The RSL is a kind of "global quota" for registry space.

Force Windows to Unload DLLs from Memory (All Windows) Popular
Windows Explorer caches DLLs (Dynamic-Link Libraries) in memory for a period of time after the application using them has been closed. This can be an inefficient use of memory on low memory systems, and may cause problems or delays for programmers developing with Windows DLL files.

Change the Number of Spare Stack Pages (Windows 95/98/Me) Popular
Windows sets aside a number of extra memory pages (spare stack pages) to be used temporarily to prevent a system "crash" due to a stack overflow condition. Sometimes all the spare pages can be used, and an error message is shown, this tweak allows you to increase the number available.

Improve Core System Performance (Windows NT/2000/XP) Popular
On systems with large amount of RAM this tweak can be enabled to force the core Windows system to be kept in memory and not paged to disk.

Change System Environment Variables (Windows NT/2000/XP) Popular
This key contains the Windows system environment variables, the variables include Path, Temp, Windir and any other defined values.

Enable Plug and Play on Windows NT (Windows NT 4.0)
Windows NT4 does not support plug-and-play devices out of the box, but it can be configured to a least partially support some PnP features with a little help.

Control the Default Virtual Machine Option (Windows NT/2000/XP)
When starting a 16bit application you have the option of running each in a separate virtual machine (VDM). With this setting you can change the default value.

View Which Hot Fix Patches Have Been Installed (Windows NT)
Periodically Microsoft releases Hot Fix's to patch bugs in Windows and other products, this key contains information about which Hot fix's have been installed.