CrystalDiskMark is designed to quickly test the performance of your hard drives. Currently, the program allows to measure sequential and random read/write speeds.

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Disk Heal is a free useful tool that performs many useful functions. A clean-up type of software which cleans the mess made by some viruses. In addition to fixing disk problems, it provides a few other features as well. With this tool even we able to change drive icon easily.

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Partition Logic is a free hard disk partitioning and data management tool. It can create, delete, format, and move partitions and modify their attributes. It can copy entire hard disks from one to another.

Partition Logic is free software, available under the terms of the GNU General Public License. It is based on the Visopsys operating system. It boots from a CD or floppy disk and runs as a standalone system, independent of your regular operating system.

Partition Logic is intended to become a free alternative to such commercial programs as Partition Magic, Drive Image, and Norton Ghost.

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HD Tune is a hard disk utility which has the following functions:

* Benchmark: measures the raw performance
* Transfer Rate
* Access Time
* CPU Usage
* Burst Rate
* Hard Disk information which includes firmware version, serial number, disk capacity, buffer size, transfer mode
* Hard Disk Health
* S.M.A.R.T. Information (Self-Monitoring Analysis and Reporting Technology)
* Temperature
* Power On Time
* Copy text to clipboard
* Copy screenshot to clipboard

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TestDisk is a powerful free data recovery utility. TestDisk was primarily designed to help recover lost partitions and/or make non-booting disks bootable again when these symptoms are caused by faulty software, certain types of viruses or human error (such as accidentally erasing your Partition Table).

TestDisk is a free and useful program which queries the BIOS ( DOS/Win9x) or the OS ( Linux, FreeBSD) in order to find the Hard Disks and their characteristics ( LBA size and CHS geometry). TestDisk does a quick check of your disk´s structure and compares it with your Partition Table for entry errors. If the Partition Table has entry errors, TestDisk can repair them. If you have missing partitions or a completely empty Partition Table, TestDisk can search for partitions and create a new Table or even a new MBR if necessary.

However, it´s up to the user to look over the list of possible partitions found by TestDisk and to select the one(s) which were being used just before the drive failed to boot or the partition(s) were lost. In some cases, especially after initiating a detailed search for lost partitions, TestDisk may show partition data which is simply from the remnants of a partition that had been deleted and overwritten long ago.

TestDisk has features for both novices and experts. For those who know little or nothing about data recovery techniques, the command line parameters /log and /debug can be used to collect detailed information about a non-booting drive which can then be sent to a tech for further analysis. Those more familiar with such procedures should find TestDisk a handy tool in performing onsite recovery.

TestDisk can find lost partitions for all of these file systems:

* BeFS ( BeOS )
* BSD disklabel ( FreeBSD/OpenBSD/NetBSD )
* CramFS, Compressed File System
* DOS/Windows FAT12, FAT16 and FAT32
* HFS and HFS+, Hierarchical File System
* JFS, IBM´s Journaled File System
* Linux Ext2 and Ext3
* Linux Raid
o RAID 1: mirroring
o RAID 4: striped array with parity device
o RAID 5: striped array with distributed parity information
o RAID 6: striped array with distributed dual redundancy information
* Linux Swap (versions 1 and 2)
* LVM and LVM2, Linux Logical Volume Manager
* Mac partition map
* Novell Storage Services NSS
* NTFS ( Windows NT/2K/XP/2003 )
* ReiserFS 3.5, 3.6 and 4
* Sun Solaris i386 disklabel
* Unix File System UFS and UFS2 (Sun/BSD/…)
* XFS, SGI´s Journaled File System

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The files saved on your hard disk may get fragmented due to various reasons. Due to this, while accessing the files, your hard disk has to move a lot to get data from different fragments located at far distances, this degrades your hard disk performance and overall system speed. In addition it results in high wear and tear of your hard disk and therefore small life.

Puran Defrag provides the solution. Puran Defrag is a very simple defragmentation utility which defrag the files that means it collect all the fragments of a file and puts them togather, this upgrades your hard disk performance and thus overall system speed. In addition it results in low wear and tear of hard disk and therefore increases its life.

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