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1. #Disk defragmenter windows 10 command prompt how to#
2. #Disk defragmenter windows 10 command prompt drivers#
3. #Disk defragmenter windows 10 command prompt Pc#
4. #Disk defragmenter windows 10 command prompt windows 7#
5. #Disk defragmenter windows 10 command prompt free#

Way 1: Optimize and Defragment Drivers in Windows 10 with Windows Care Genius Be that as it may, you can also choose to defragment and optimize manually when your Windows 10 defrag not working. Although Windows includes built-in features to help you choose the optimization that's right for your drive and defragment your drives in the background once a week.

#Disk defragmenter windows 10 command prompt Pc#

There are even more command line switches and they can be seen by entering defrag /? but they are mainly for specialist uses.Defragmenting and optimizing the drive is one of the commonly-used way to speed up your slow PC and keep it in optimum condition. That command defrags drives C: and D: at the same time ( /m) at normal priority (/h) and shows the progress ( /u). These parameters can be used on their own or combined together, like this: defrag c: d: /m /h /u If you want to see a constantly updated status for defrag, use /u.

It is possible to simultaneously defrag two disk drives, such as drive C: and drive D:, by adding the /m command line switch like this: defrag c: d: /m

#Disk defragmenter windows 10 command prompt free#

Use the following command to consolidate all the free space: defrag c: /x It can also be a problem if you want to shrink a drive partition. This may slow down writes to the disk as small blocks of free space are filled with a file as it is saved, causing fragmentation. Not only do files become fragmented, so does the free space on the disk. From the command like you can force defrag to run with normal priority for programs and this will enable it to complete the job in less time. This means that it runs slowly so as not to slow down any programs you might be using. Normally the defrag tool runs at a low priority. Command line parameters can be used on their own or combined together, like this: defrag c: /a /u /v To get a verbose report with a lot more information about the status of the disk, use /v. If you want to see a constantly updated status when defrag is running, use /u. The c: is the drive letter and the /a means check for fragmentation and display a report. To get a report showing the amount of fragmentation on the disk, enter defrag c: /a

#Disk defragmenter windows 10 command prompt windows 7#

In Windows 7 go to Start, All Programs, Accessories, right click Command Prompt and run as an administrator.

Right click the Start button in Windows 10 and select Command Prompt (Admin). Defrag from the command lineĪlthough there is a graphical tool to defragment the disk, there are more features in the command line version. You could plug in and power up your laptop and let it idle for an hour or two, or you could manually run the Windows defrag tool and force it to optimise the disk. That is a lot and usually disks are worth defragmenting when they get over 10%. Here is a laptop that has been running almost exclusively on battery power for a couple of weeks and the fragmentation is up to 46%. If you charge up the laptop, but don’t power it up and run it on mains power, defragging is put off and put off and fragments are growing in number. The reason is that defragging the disk takes a lot of power, so the task is skipped when a laptop is on battery power. The disk can become quite fragmented if you have a laptop and run it on the battery a lot. However, there are situations where it may not do it, which can lead to quite a lot of fragmentation. Windows automatically defragments the disk every week in the background when the computer is idle. A file split into 100 fragments on an SSD can be read as fast as if it was one fragment. With a mechanical disk that has spinning discs inside and arms that move read/write heads in and out, it takes a significant amount of time to locate all the parts of a fragmented file.Īn SSD is simply reading memory locations and it doesn’t matter which part of memory is read, it is all read at the same speed. A file may be split into a hundred or more parts, each located in a different part of the disk. If your computer has either an SSD (solid state disk) or a hybrid drive which is part SSD and part hard disk, then it should not be defragmented.įiles become fragmented over time and are literally broken into fragments.

#Disk defragmenter windows 10 command prompt how to#

Here we will look at how to do this from the command line, which offers more features, but needs a bit more technical knowledge than running it from the Windows interface. Read Do you still need a disk defragmenter for Windows PCs in 2017? if you want an introduction to defragmenting disks in Windows.