CCleaner is a freeware system optimization and privacy tool. It removes unused files from your system - allowing Windows to run faster and freeing up valuable hard disk space. It also cleans traces of your online activities such as your Internet history. But the best part is that it's fast (normally taking less than a second to run) and contains NO Spyware or Adware! :)

Defrag Individual Files
Most defragmentation tools only let you defrag the whole drive. Defraggler gives you the power to select individual files and folders to defrag. So you can get the job done in seconds, rather than waiting for the whole drive to complete. Of course if you want to defrag the whole drive Defraggler will let you do that too.
Compact and Portable
Defraggler was written in the same compact architecture as other Piriform products (CCleaner and Recuva). This results in a compact single EXE application, which can be copied to a thumbdrive and then used whenever you need it, without a complex installation process. The EXE itself is less than 1MB!
Vista Support
Defraggler supports all OSs released since Windows 2000, this includes Windows 2000, 2003, XP and Vista. 64-bit support has also just been added! Additionally Defraggler supports both NTFS and FAT32 file systems.
Locate Files on the Drive
After analysis Defraggler lists all the fragmented files on the drive. Selecting one or many will highlight their location on the disk. Allowing you to visually see the location of files on the disk.

Small GUI application designed for real-time CPU frequency, throttling and load level monitoring and on-the-fly adjustment of the CPU performance level on supported CPU models via processor's power management model-specific registers (MSRs). In automatic management mode it continuously monitors the CPU usage level and dynamically adjusts the CPU frequency, throttle and/or voltage level as needed, realizing the "Performance on Demand" concept.

Features
* Real-time CPU clock and CPU/OS load level determination and monitoring (with optional logging).
* Detection of virtually any form of CPU clock throttling.
* Dynamic on-demand CPU performance state (P-state) transitions via real-time adjustment of CPU multiplier (FID) and/or requested voltage level (VID).
* Dynamic on-demand CPU clock modulation via real-time transitions between CPU clock throttling levels.
* Fine-tuning of advanced CPU-specific power management settings for AMD K7, AMD K8, Intel Pentium M/Centrino platform, Intel Pentium 4 and Xeon, Intel Core Solo/Core Duo/Centrino Duo platform, Intel Core 2, VIA C7 and Transmeta Crusoe/Efficeon CPU families.
* Complete support for multi-processor (SMP/HT/multicore) systems.
* Windows power management settings and LCD display brightness control (where supported).
* Battery information display (general and per-battery) including real-time status display of the battery life time, charge level, charge/discharge rate etc.
* CPU core temperature display (available on AMD K8, Intel Core and Intel Core 2 CPU families).