Increase the USB Polling Interval (Windows 98/Me/2000/XP)
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.

Optimize Large Second Level Cache (Windows NT/2000/XP) Popular
Windows is optimized for a 256KB secondary cache by default. With most computers now having L2 caches larger than that it pays to take the time to change the setting to correspond to the size of the cache memory installed.

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

System Board and Memory Optimizations (Windows 95/98/Me)
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).

View System BIOS Information (Windows NT/2000/XP) Popular
This registry key stores information about the system BIOS, including the release date, version number and video BIOS date.

View System Processor Information (Windows NT/2000/XP)
These values contain information about the system processor, including speed, brand and model.

Fix Problem with Athlon Hanging AGP Programs (Windows 2000/XP) Popular
Windows may stop responding when you use an Accelerated Graphics Port (AGP) program with an AMD Athlon processor. This is due to the memory allocated by the video adapter driver becoming corrupted.

Enable UDMA66 Mode on Intel Chipsets (Windows 2000/XP) Popular
If you have a computer with an Intel chipset that supports UDMA66, you will still find that UDMA66 mode is disabled by default on Windows 2000 computers. This tweak allows you to enable or disable it.

Manage Native Processor Performance Control (Windows XP)
Windows includes built-in processor performance control to manage the microprocessor so it is more efficiently utilized. This tweak allows you to modify this feature.

Modify the Paged and Non Paged Pool Memory Sizes (Windows NT/2000/XP)
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.

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.