How to Defragment a Disk on a Windows Computer

Steps

1. Start Windows in Safe Mode. This is not mandatory, but it helps to avoid complications from other programs that are running in the background. This also speeds up and streamlines the process.
2. Uninstall any programs you do not use or need. It is best to uninstall programs prior to a defragmentation, as the newly-acquired free space will generally be located all over the hard drive, thereby giving rise to fragmentation.
3. Make sure that all unnecessary programs are closed. If you have already started in Safe Mode, then this has already been done.
4. Cancel any programs that are scheduled to run. If you have not manually scheduled any programs to run, then skip this step.
5. Delete any temporary files. This is done by running Disk Cleanup. To run the program, go to: START -> Run, and enter cleanmgr in the window.
6. Run the Disk Defragmenter Program. Go to START -> Run, and enter dfrg.msc in the window. Alternatively, launch it by going to Start -> Programs (or All Programs) -> Accessories -> System Tools -> "Disk Defragmenter". A window similar to the one on the right should appear. Click Analyze so you can see what the damage is, and then look at the report. If you want to continue: Make sure that your desired drive is selected [C: being the default drive], and click on the Defragment button.
7. Wait until the process is complete. Sit back and relax as your computer organizes your fragmented files.

1. Make a new txt application. On windows you will edit the txt document with Notepad on defult.
2. Make the code.
   1. Type in defrag becasue you are obviously going to defrag a disk.
   2. Type in the drive letter or mount point that you wish to defragment. For example: defrag c:.
   3. Type in parameter -v if you want to see extra data.
   4. Type in -a if you just want the data. Note: -a -v will print out a more detailed data.
3. Execute the file. First, rename your file so the extention is .bat. Your file is now a batch file. Next, click on it.
4. Wait. It could take anywhere from ten minutes to several hours to defragment a hard disk, depending on the size of the disk, number of files, and how many clusters are fragmented. Don't use the computer, as this will slow the process, and may make it start over again.

Video

Tips

• Defragment your computer overnight. If you have never defragmented your computer before, and you have a large hard drive, the process can take several hours.
• You can also access the Disk Defragmenter via the Start menu by going to START -> Programs -> Accessories -> System Tools -> Disk Defragmenter.
• The more often that you run the defragmenter, the quicker the process will be. Generally, once per month is good.
• Remember that defragmenting takes the saved portions of all of your files and organizes them to help your computer run more efficiently. Keep in mind that some files (such as critical system files and boot procedure files) cannot be moved.
• If the Defragmenter keeps restarting, and you have not already run your computer in Safe Mode, do so. See the Related wikiHows section below for the steps to start your computer in Safe Mode.
• The free Defragmenter provided with the Operating System does a reasonable job as far as it goes, however it cannot defragment system files such as MFT or prioritise file placement according to usage. Commercial Defragmenters (such as Diskeeper, Perfect Disk and O&O)do a better job with these more difficult tasks.
• Defragmentation is not needed on most Linux operating systems because the file system is designed to keep fragmentation at minimal.

Warnings

• Unless you choose "Safe Mode With Networking", you will not be able to access the Internet while in Safe Mode. Make sure that you know how to access the Defragmenter program before you enter Safe Mode.
• If you are using Windows 95, 98, or ME, do not use your computer during the defragmenting process, since this may restart or hinder the process.
• While uninstalling, if you are unsure of what a program does, do not remove it until you do know or someone who knows can inform you.

Related wikiHows

• How to Start Windows in Safe Mode
• How to Do Computer Maintenance and Reduce Computer Problems
• How to Degauss a Computer Monitor
• How to Clean Your Computer
• How to Delete Files Forever

Sources and Citations

• Diskeeper.com
• Computer Performance

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