It’s necessary to remove junk files because there’s no need to optimize the structure and access times of useless data.
Though it would seem simple to open a program and have a go at it, there are a few things we need to look at before we start a defrag. In short, defragging simply rearranges file blocks for quicker access time. Instead of having to search vast areas for one file to open, the system can find it all in one cluster as it was originally intended. This will make access time as quick as possible seince no extra space is present between the parts of the file.ĭefragging will bring these file blocks together and clear up the dead space causing performance issues. The result of defragging would desirably should look like the green blocks below. If we consider a file of 1 GB is split up among these three blocks, separated by other data, it’s obvious it will take extra time to combine the video file parts into one viewing object because of the space the system has to traverse to find it all. Let’s say the blue blocks are blocks of space occupied by particular, unknown files while the red blocks contain one video file. As this occurs over time, parts of files can get located at a totally different cluster then their counterparts (which essentially mean they get fragmented), thus causing slower access times for the system to compile the parts together for viewing.Ĭonsider the following picture.
#Do i still need to defrag my computer free
This occurs as free clusters of available space is already full, and Windows decides to place part of the file to another part of the drive where a free cluster does exist. This isn’t noticeable because the reference (say, the reference to the Desktop or Pictures folder) doesn’t change, but rather the location of the actual data changes. When you save various files on the hard drive, they oftentimes are relocated to a different part of the drive then they were before. Fragmentation occurs over a period of time when files are saved, changed, or removed. To defrag a file system is to combine fragmented files – hence the name defrag. Select the disks that should be defragged and press “Analyze disks” to check the status of whether they should even be defragged at all, or press “Defragment disks” to start the process.
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