Improving performance by optimising your drive

One of the best ways you can improve your PC's performance is by optimising the drive. Windows includes features to help optimise the different types of drives that PCs use today. No matter which type of drive your PC uses, Windows automatically chooses the optimisation that's right for your drive.

By default, Optimise Drives, previously called Disk Defragmenter, runs automatically on a weekly schedule. But you can also optimise drives on your PC manually.

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To optimise drives manually

  1. Open Optimize Drives by swiping in from the right edge of the screen, tapping Search (or if you're using a mouse, pointing to the uper-right corner of the screen, moving the mouse pointer down, and then clicking Search), entering Defragment in the search box, and then tapping or clicking Defragment and optimize your drives.

  2. Under Status, tap or click the drive you want to optimise. (The Media type column tells you what type of drive you're optimising.)

  3. To determine if the drive needs to be optimised, tap or click Analyse. Administrator permission required You might be asked for an admin password or to confirm your choice.

    After Windows has finished analysing the drive, check the Current status column to see whether you need to optimise the drive. If the drive is more than 10% fragmented, you should optimise the drive now.

  4. Tap or click Optimise. Administrator permission required You might be asked for an admin password or to confirm your choice.

    Optimising a drive might take anywhere from several minutes to a few hours to finish depending on the size of the drive and degree of optimisation needed. You can still use your PC during the optimisation process.

Notes

  • If the drive is being used by another program, or is formatted using a file system other than NTFS, FAT or FAT32, it can't be optimised.

  • Network drives can't be optimised.

  • If a drive isn't appearing in Optimise Drives, it might be because it contains an error. Try to repair the drive first, then return to Optimise Drives to try again. For more information, see "To repair a drive" at the end of this article.

To change the optimisation schedule

  1. Open Optimize Drives by swiping in from the right edge of the screen, tapping Search (or if you're using a mouse, pointing to the uper-right corner of the screen, moving the mouse pointer down, and then clicking Search), entering Defragment in the search box, and then tapping or clicking Defragment and optimize your drives.

  2. Tap or click Change settings. Administrator permission required You might be asked for an admin password or to confirm your choice.

  3. Do one of the following:

    • To turn off scheduled optimisation, untick the Run on a schedule checkbox.

    • To change the frequency of scheduled optimisation, next to Frequency, tap or click the drop-down list, then tap or click Daily, Weekly or Monthly. The default schedule for optimisation is weekly and runs during Automatic Maintenance.

    • To choose the drives you want to include or exclude in scheduled optimisation, next to Drives, tap or click Choose, tick or untick the checkboxes next to the drives, then tap or click OK. You can also untick the Automatically optimise new drives checkbox if you don't want new drives added to scheduled optimisation. If Windows can't optimise a drive, it won't offer the drive as an option for Automatic Maintenance.

  4. Tap or click OK.

To repair a drive

  1. Open This PC by swiping in from the right edge of the screen, tapping Search (or if you're using a mouse, pointing to the upper-right corner of the screen, moving the mouse pointer down, and then clicking Search), entering This PC in the search box, and then tapping or clicking This PC.

  2. Press and hold or right-click the drive you want to repair, then tap or click Properties.

  3. Tap or click the Tools tab, then, under Error checking, tap or click Check. Administrator permission required You might be asked for an admin password or to confirm your choice.

  4. Follow the instructions. You might need to restart your PC after error checking is complete.