Windows 10: What's the D; drive and how can i optimise it?

Discus and support What's the D; drive and how can i optimise it? in Windows 10 Software and Apps to solve the problem; When I go to This PC, I see that I have 6.9 GBs of free storage out of 117 GBs on a drive with a blue windows icon called Windows C;, however there's... Discussion in 'Windows 10 Software and Apps' started by Salma Rayyan1, Apr 13, 2025.

  1. What's the D; drive and how can i optimise it?


    When I go to This PC, I see that I have 6.9 GBs of free storage out of 117 GBs on a drive with a blue windows icon called Windows C;, however there's two more drives, one called DATA D; with 481 GBs free and a Local Disk E;. I have an exam coming up that I'll take on my laptop, and so I'm looking to optimise it so I am clear of any issues, and I know storage can slow down some processes. Is there anyway to move my desktop/picture/videos/documment folders to the DATA drive so I have more storage avaliable on the Windows drive? And a way of doing that safely and without losing any data?

    :)
     
    Salma Rayyan1, Apr 13, 2025
    #1

  2. D drive

    Hi,

    Based on the details you have provided us, it appears that there might be some corrupted contents on the said partition. We can also consider that this is caused by a virus.

    For us to check if a certain virus is hiding your files, kindly follow the steps below:

    • Type Command prompt in the search bar.
    • Type-in the following command:

      attrib -h -r -s /s /d D:\*.*
    • Press Enter to execute the command.

    If you think that there is nothing important stored in it, then we suggest that you reformat your D drive so that you can use the free space for important files.

    You can follow the steps below to start with the process:

    • Click on the File Explorer.
    • Select This PC.
    • Right-click on your D drive, then click on Format.
    • Follow the on-screen process to finish formatting the partition.

    Let us know how it goes so that we can further assist you.
     
    Engelsen Fad, Apr 13, 2025
    #2
  3. Try3 Win User
    Optimise my DRIVE D , Windows 10

    Walter, I suggest doing nothing. The Windows 10 built-in Optimiser does not bother moving around anything bigger than 64MB in any case. MS discovered during Windows 7 [or Vista?] development that there was no real benefit in doing so. So the files you have deleted will not have affected anything that the Optimiser is interested in. Unless you have deliberately turned off the Optimiser referred to by Ghot then you could, in any case, just let Windows handle it for you without any action being needed on your part. All the best, Denis
     
  4. Harry0YF Win User

    What's the D; drive and how can i optimise it?

    Windows Optimise Drives Lists SSD as HDD. How to correct this?

    Hi Igor,

    Yes,

    fsutil fsinfo sectorinfo d:

    reports

    Trim Not Supported

    as you suggested.

    This is consitent with other commands such as Optimse Drives which say that the D: drive is a Hard Disc Drive. It is not an HHD, it is a RAID array of 4 SSDs. As Optimse Drives thinks it is an HDD it wants to run defragmentation on the drive every week. My solution so far has been to turn off scheduled optimisation.

    My other SSD RAID is reported as an SSD by Optimse Drives and so the scheduled optimisation for it is retrim. Perhaps Windows is unable to clasify a drive as both SSD and 'Trim Not Supported'. That is maybe Windows identifies all SSDs that do not support trim as HDDs? (These SSDs do support TRIM by the way but perhaps not in the RAID setup.) It is reported on other sites that TRIM is not supported by AMD RAID. However, it is odd that one of the arrays does support TRIM and the other does not. Maybe it is best to just turn off scheduled optimisation for all SSD RAIDs.
     
    Harry0YF, Apr 13, 2025
    #4
Thema:

What's the D; drive and how can i optimise it?

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