Windows defrag command line switches

If you do open the defragmenter app, you may be surprised to find how sparce it is. It lets you analyze or defragment individual disks; hold your Ctrl key to select multiple disks and defragment your whole system at once.

You can also change the defragment schedule. To dig deeper, we need to head over to the command prompt. To dig deeper, open command prompt in Administrative mode. To use the defrag tool, just enter defrag followed by the parameters you want to use.

Then to use defrag, just enter the following, like you would with many command apps. So, to simply defrag your drive, just enter defrag [drive name]. If your main drive is C:, then just enter defrag C: to defrag your main C drive. After a few moments, you can see how large your drive is Or partition if your hard drive is in multiple partitions , how much free space it has, the total fragmented space, and largest free space segment. Underneath, the defrag tool will tell you if it thinks you need to defrag now or not.

Would you like to just defragment all of your drives without getting extra info or doing a more complicated defrag? Or, hey, you could just do this from the main defrag window since it works the exact same. You can put the options you need together, too.

Say you want to defrag all of your devices in verbose mode to see more info, and you also want the defrag to run at top priority. Remember to not close the window before the defrag is finished, as this will kill the process. Use Google Fonts in Word. Use FaceTime on Android Signal vs.

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I'll take Vista over XP any day of the week. Not having to run a disk-defrag utility is only one of the reasons why. Yes, I know you can automate disk defrags in XP via Scheduled Tasks, as Microsoft explains in this Knowledge Base article , but doing so is too much hassle for the average Windows user.

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Defrag Windows from the Command Prompt Improve the performance of XP and Vista--at least a little bit--by running its built-in disk defragmenter with your choice of command switches. Dennis O'Reilly. May 7, a. Vista's Disk Defragmenter utility is a no-frills affair. Microsoft XP's version of the Disk Defragmenter isn't much more functional, although it does give you a little more graphical feedback about the state of your drives.

Type defrag? Microsoft For example, to defrag all your Vista volumes regardless of fragment size and when there's less than 15 percent free space, enter this line at the command prompt and then press Enter: defrag -c -w -f The utility will display a report on the selected volumes prior to beginning the defragmentation. If you are using Disk Defragmenter to defragment a volume and you run the defrag command at a command-line, the defrag command fails.

Conversely, if you run the defrag command and open Disk Defragmenter, the defragmentation options in Disk Defragmenter are unavailable. Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. In this article.