Windows 10: My storage keeps going up and down on my C drive.

Discus and support My storage keeps going up and down on my C drive. in Windows 10 Software and Apps to solve the problem; I keep my PC idle, and maybe for about 2 minutes it'll go down 200MB's or even more. And maybe 2 extra minutes it'll go up. It has happened for about 8... Discussion in 'Windows 10 Software and Apps' started by Avery Pele, Jun 22, 2025 at 6:57 PM.

  1. My storage keeps going up and down on my C drive.


    I keep my PC idle, and maybe for about 2 minutes it'll go down 200MB's or even more. And maybe 2 extra minutes it'll go up. It has happened for about 8 days and I've tried various tutorials and I can't fix it. I used Malwarebytes to see if it was something in my computer. And nothing, I scanned my c drive, nothing.

    :)
     
  2. Arun B J Win User

    C: Drive Admin Share Keeps Enabling

    Hi,



    Thank you for your response.



    I suggest you to follow the steps below and check if it helps.


    • Press Windows +E,

    • Right click on C: drive.

    • Select Sharing Tab.

    • Click on Advanced Sharing.

    • Uncheck “Share this folder”.


    Keep us posted on this issue so that we can assist you better.
     
  3. Anwille Win User
    extend c drive storage space

    Hi, I'm , an Independent Advisor.

    Disk Management is a Windows built-in tool that supports to increase partition size with its "Extend Volume" feature. However, the program has some limitations in increasing disk space:

    - Extend Volume only works on NTFS and RAW partition. FAT32 and other file systems are not supported.

    - The Extend Volume will grey out if there is no adjacent unallocated space behind the target partition.

    So, the ways to increasing C drive with or without adjacent unallocated space are different. Open the Disk Management, and follow the right tutorials listed below to extend the local disk C drive on your own now:

    #1. Increase C Drive Space with Adjacent Unallocated Space

    Step 1. Right-click This PC/My Computer, click "Manage", select "Disk Management" under Storage.

    Step 2. Locate and right-click on the local disk C drive, and choose "Extend Volume".

    Step 3. Set and add more space to your system C drive and click "Next" to continue.

    Step 4. Click "Finish" to complete the process.

    Note that if that unallocated space on your system disk is not behind the C drive, you can't extend C drive in Disk Management.

    Hope this helps. Let me know if I can help you further!
     
  4. My storage keeps going up and down on my C drive.

    Hard Drive Storage

    I have a 500Gb Hard Drive, running Windows 10 Pro version 1909. My c drive is nearly full, I have checked every area on the pc and nothing adds up to the 486Gb I'm supposed to have available. I have gone to Settings > System > Storage - it shows that 401Gb
    is being taken up by Apps and features but when I click on this and show the list of installed apps with their sizes, I have added up the entire list and it comes to 25Gb total. It doesn't show what's eating up the rest of the 400Gb of space. I have deleted
    everything I can and have only been able to free up 11Gb so far so my c drive is still showing red. At this point is the only other step to reload the pc, or does anyone have any suggestions as to what it might be and how to fix?

    Thanks,

    Heather
     
    Heather Clemons, Jun 22, 2025 at 7:07 PM
    #4
Thema:

My storage keeps going up and down on my C drive.

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