Smart Defrag Portable 4.2.1

By | 31.07.2019

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A collection of new portable software, united into a single shell for easy quick start. The finished collection already includes programs such categories as: Everything is pre-configured to work portable. It suffices to install the assembly in the desired location on the portable device can operate. The shell has a convenient intuitive menu.
Smart Defrag Portable 4.2.1

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Default is “JkDefrag. Specify empty string “” two double-quotes to disable the logfile. If the item contains a space then it must be enclosed in double-quotes. Some examples: JkDefrag C: JkDefrag f: It moves a minimum of data on the harddisk and finishes very quickly, but will not fill all the gaps on the disk. The strategy scans for gaps on the disk and fills them with files from above.

This is by design, it is not a bug. For more info see the Frequently Asked Questions. These sorting optimizations are for incidental use once in a while. They take a lot of running time and data movement because they rewrite all the data on the disk. The strategies vacate a small area on disk and then fill it up again with the files in the selected order. Sort by name: The files used by a particular program will be very close together on disk. Sort by size: Sort by last access: Sort by last change: Sort by creation time: The oldest files on the disk are likely to be important system files, for example used when Windows is booting.

If you want to sort by last access time then first make sure your virus scanner and other programs that scan all files on disk do not change that time. Force together Intended for partition resizing. All movable files are moved to the beginning of the disk, even if it means fragmenting them to fill gaps that cannot be filled otherwise. Move to end of disk Move all the files to the end of the disk, making more room at the beginning of the disk.

Intended for big and rarely used files such as log files, backup archives, installation files, and such. Frequently asked questions I have set up a forum for JkDefrag, a place where you can ask questions, give feedback about features you would like, share your experiences, share code that uses the defragger library, and other things about JkDefrag.

Jump to JkDefrag forum What is “disk fragmentation”? Imagine a book split into several parts, some pages are over here, other pages in another room on another floor altogether. You will have to walk a lot when you need to read the book.

It may sound silly, but this is exactly what happens to files on your harddisk. Defragmentation will put all the parts fragments back together, making your computer a lot faster. What is “disk optimization”? Imagine a big library with lot’s of books, spread out all over the building and not sorted whatsoever. There is an index telling you exactly where every book is, but you will have to walk a lot when you need several books.

This is exactly what happens on your harddisk, the files that belong to an application can be all over the place, anywhere on the harddisk. Optimization will bring all the files together in one place, leaving the rest of the harddisk empty, and will sort the files, for example alphabetically. How safe is it? Most defragmenters are based on this API, including commercial defragmenters.

It does not touch the disk by itself, and is therefore extremely solid. If your disks use NTFS then you’re even safe when the computer crashes in the middle of defragmenting. Do I have to “checkdisk” before running JkDefrag?

Feel free to do so, but it’s not necessary. JkDefrag is totally solid and cannot get confused by a corrupted disk. And even if it could then nothing bad can happen, because JkDefrag does not write to disk itself. Everything is done through the Windows defragmentation API, and Windows is quite smart about handling corrupted disks. How do I specify an option, or select a single disk or folder or file?

If you don’t know how to use the Windows commandline, then take a look at the GUI wrappers, see the “Contributed by other people” chapter.

Another way is to create a shortcut to “JkDefrag. For example: In the same properties window you can select “minimized”. See the JkDefrag “-q” option to exit automatically when finished. Where is the Stop button? All versions of JkDefrag can be stopped safely at any time, there is no risk of losing data or corrupting your disk. You can use all the usual ways to stop a Windows program, such as pressing ALT-F4, clicking the ‘x’ in the top-right corner, via the pull-down menu in the taskbar, or by killing the program via the task manager or another utility.

It may take a bit of time for the program to actually stop, JkDefrag will finish the current file in the background. What are the colors on the diskmap? See the list in the “Install” chapter, just above the snapshot. Unmovable files are only colored in red after JkDefrag has unsuccesfully tried to move them. The pink area is the MFT reserved area, allocated by Windows when a disk is formatted. It’s there so the MFT can grow without getting fragmented. Windows itself can sometimes place files there, but not other programs such as JkDefrag, When the disk is full Windows will automatically shrink the area, and therefore counts it as regular disk space.

Yes, no problem whatsoever. JkDefrag does not know anything about the underlying hardware, it leaves that up to Windows. It can therefore defragment and optimize anything and everything that behaves like a disk. Removable media for example floppies are not processed by default, only when you specify the disk on the commandline for example “jkdefrag G: Are striped RAID volumes faster at the beginning?

Striped raid volumes are mapped onto physical drives in blocks usually 64 kilobyte. The first block in the stripe set is the first block on the first drive, the second striped block is the first block on the second drive. If there are only 2 drives then the third striped block is the second block on the first drive.

So, striped raid volumes have the same characteristics as the underlying physical drives – fast at the beginning and slow at the end. You can test the speed with the HDTune utility, see the link in the “see also” chapter. My advice for all computers is to run JkDefrag once with the “-a 7” optimization sort by name , and from then on automatically every day with the default “-a 3” fast-optimize option. The “-a 9” optimization sort by last access time only works as expected if you do not use programs that scan all files on disk such as virus scanners and backup programs , causing Windows to update all the last access times.

How can I run JkDefrag automatically every day? It’s a great idea to run JkDefrag automatically every day by adding it to the Windows scheduler, like this: Use the ‘browse’ button to select the ‘JkDefragCmd. Select ‘daily’, next, select a time, next. The commandline version of JkDefrag “jkdefragcmd.

See the “-q” option to do the same for the Windows version. See the “Settings” of the scheduled task to run only when the computer is idle.

Use the windows version of JkDefrag “jkdefrag. In some circumstances it can be preferable to run JkDefrag with “system” privileges instead of administrator privileges. How do I use the screensaver? See the instructions in the “Install” chapter. How to run JkDefrag at boot-time? It’s very easy to run JkDefrag automatically in the background when the computer starts via the Windows Task Scheduler: Select ‘When my computer starts’, click next. This will not defragment system files such as the page file.

To do that see the “see also” chapter for a link to Pagedefrag, a free utility by Microsoft Technet formerly SysInternals. How to start minimized, or maximized? Make a shortcut to the “JkDefrag. How to run with a lower priority? My advice is to use the JkDefrag “-s” commandline option to slow down the program, but you can change the process priority like this: JkDefrag does not require a minimum free disk space, unlike many other defragmenters.

Windows reserves some space for expansion of the MFT, default is JkDefrag cannot move files into this space, only out of “reclaim MFT reserved space”.

A file can only be defragmented if there is a gap on disk big enough to hold the entire file. There may be plenty of free space, but what is needed is a single big gap. In these cases JkDefrag will try to reduce the number of fragments in the file by using the biggest gaps available.


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