Use Defraggler to defrag your entire hard drive, or individual files - unique in the industry. This compact and portable Windows application supports NTFS and FAT32 file systems.
Defraggler - Features
Defragment exactly what you want
Other defragging programs are all-or-nothing: they don't have settings beyond defragmenting your entire hard drive at one go.
At Piriform, we understand that users want more control over what they can defrag. We've designed Defraggler to give you as many options as you need - without overwhelming you with needless clutter.
For most users (and especially impatient ones!), simply launch Defraggler, click the drive you want to defragment, and then click the big Defrag button. If you want to save some time, there's also Quick Defrag.
You can defragment an entire file, a folder, or a single file. Tell Defraggler to search for files of a particular size or type. Or tell it to exclude files by name, file type, or other criteria.
One of Defraggler's more advanced features is the ability to move large files to the end of the hard drive. Your computer accesses files faster if they're at the start of the drive. Defraggler can put the large files you probably don't use that often (videos and archives, for example) at the end of the drive so that Windows can find the smaller files faster.
Simple enough for everyday users, and flexible enough for those who demand the most options, Defraggler is your best choice to take back control of your hard drive.
Safe and Secure
It may send shivers down your spine, but hard drives fail.
They do more than fail: they lose files, get corrupted, become unreadable, and all of the things we users dread when we go to start our computers up in the morning.
For example, if you pull the power cord out of your PC while you're writing files to the hard drive, there's a tiny chance that you might lose a file - or that the hard drive may become unusable.
Even copying or moving files from one location on a drive to another can cause problems if the drive is flaky, or if there's a power surge or power failure.
That's a roundabout way to introduce the topic of Defraggler and safety. You may wonder if Defraggler is safe. After all, it has access to your entire hard drive, and spends its time moving thousands of files around to optimize and speed up your PC.
The simple answer is: Yes.
Windows has a set of built-in procedures it uses whenever you copy or move files on your computer. For example, if you move a file from your hard drive to an external USB drive, it will copy the file to the USB drive first, then delete it from the hard drive. In case a problem occurs writing the file to the USB drive, it still has the original on the hard drive to work with.
That's a simple example. Windows has many safeguards to prevent data loss when working with files. The good news is that Defraggler uses those same safeguards.
When Defraggler reads or writes a file, it uses the exact same techniques that Windows uses. Using Defraggler is just as safe for your files as using Windows.
Compact and portable
A lot of utilities are big, ungainly pieces of software that take a long time to download, a long time to install, and use up a lot of resources on your computer.
If you're like us, you've been disappointed by utilities that seem to monopolize your Windows PC and insist on getting their work done without letting you get yours done.
When we set out to create Defraggler, we wanted to come up with a lightweight application that would defragment your hard drive easily and quickly - without being a burden on your system or getting in your way.
We're proud that the Defraggler installation file is only around 3MB. That's about the size of an MP3 you might download, or a short video you might post to YouTube. On a normal broadband connection, Defraggler should take only a few seconds to download.
Installation takes just under a minute, and you'll be ready to defrag your hard drive and start speeding up your PC in no time.
Other defrag utilities take over your system while you're using them and can take hours to run. Defraggler is small and uses few resources, so that you can keep working on your PC, without annoying slowdowns.
Small is beautiful. And so is Defraggler.
Interactive drive map
Defraggler can show you how fragmented specific files are on your PC - before you defrag them.
Once you select a drive, Defraggler shows you the interactive drive map: a visual representation of how the space on your hard drive is filled (or empty).
By default, empty space on your drive is represented by white boxes (the size of each box depends on the size of your drive and how big the Defraggler window is). Blocks of hard drive containing files are red (if they are fragmented) or blue (if they are not fragmented).
You can see at a glance how much of your drive is fragmented, where those fragments are, and other aspects of your drive. Consult the Defraggler Drive Map Legend for a full description of each color code.
Now that you've got this information, what can you do with it? The drive map is interactive, which means you can use it to identify specific groups of files.
For example, if you hover your mouse over a red or blue box, a tooltip will tell you how many files are in the block. Click the block and the list of files in that location appears in the Highlighted file list.
From here, you can select one or all files in the block to defragment, select all files in a folder, save the list of files to a text file, or even view the folder in Windows Explorer.
Defraggler's Interactive Drive Map gives you immediate graphical insight into what's on your drive.
When you're in a hurry, and you don't have time for a full defragmentation, Defraggler offers you the Quick Defrag mode. It's not as thorough or as deep as the full defrag, but it's a good first start and something you can do every few days to keep your PC running faster.
Quick Defrag is yet another way Defraggler gives you the options and control over how you want to defragment your hard drive.
Defragment free space
Most people think of free space as a chunk of empty space on your hard drive. Over time, though, as Windows writes, modifies and deletes files on your hard drive, the free space on the drive will exist in various bits and pieces.
Why is this a problem? Fragmented free space leads to further fragmentation of your files. When Windows writes a new file to your hard drive, it may have to break it up if it can't find a large enough chunk of free space for it to fit in.
Defraggler enables you to defragment the free space on your hard drive - something no other free Windows defragger can do. By defragmenting free space, you will improve Windows' performance when writing new files. You'll also help prevent new files from being fragmented.
With another unique feature, Defraggler continues to be at the forefront of defragmentation technology.
Your computer performs a lot of tasks by itself, usually at night. It may use Windows Update to see if there's any new files Windows needs. It may download the latest antivirus software definitions, or it may even restart itself.
Defraggler lets you schedule its operation so that you can run it while you're not at your PC - whether it's late at night, early in the morning, or any time of day.
As with other Windows programs, Defraggler uses the Windows Task Scheduler to enable you to set it for future defragging. Simply tell it how often you want it to defrag a drive (once, daily, weekly or monthly). Then it will go ahead on its own, tirelessly defragging your computer whenever you need it to.
If you want more options, Defraggler also lets you defragment multiple drives on the same PC, using different schedules. You can defragment your main C: drive every night, and your external D: hard drive every week. It's up to you.
Defraggler Speaks Your Language
English may be the global Internet language for now, but our users come from every continent and country across the world. To help everyone run Defraggler easily, it can be run in the following languages:
English, Albanian, Arabic, Bosanski, Deutsch, Dutch, Espanol (Spanish), French, Greek, Hebrew, Italiano (Italian), Japanese, Magyar, Norwegian, Portugues (Portuguese), Portugues (Brazilian Portuguese), Romana (Romanian), Russian, Suomi (Finnish), Svenska (Swedish) and Ukranian.
You can change languages in the program at any time.
• Added support for Windows 8.
• Added Minimize to Tray.
• Added right-click Move File to end of Drive feature.
• Improvements to Free space calculation.
• Fixed exclusions in df.exe.
• SSD drives are now handled correctly when drives are queued for defrag.
• Improved drive map block calculation for very small drives.
• Shortcuts are now correctly interpreted when calculating fragmentation levels.
• Improved support for /minpercent parameter for df.exe.
• Minor GUI improvements.
• Minor bug fixes.
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