Windows 10: C Drive Missing in Windows 10

Discus and support C Drive Missing in Windows 10 in Windows 10 Drivers and Hardware to solve the problem; Just curious Jesse, have you tried running chkdsk as suggested in the link I posted in post #5 to correct any possible file system errors that might be... Discussion in 'Windows 10 Drivers and Hardware' started by Jesse Williams, May 16, 2016.

  1. C Drive Missing in Windows 10


    Yes, time and time again. It fixes it while the computer is on by putting the C: drive back in the optimization control panel, but then when I boot it back up, it's gone again, and the action center asks me to scan the drive again for errors.
     
    Jesse Williams, May 19, 2016
    #16

  2. Aha! - my mistake ... you did reference the machine in post#1 - my apologies.

    I'll wait for the Speccy report then.

    Navy is on to something methinks!

    How are you running Chkdsk?
    If the drive is a spinner (not an SSD)
    Try
    Command Prompt (Admin) > Chkdsk C: /R
    Answer Yes to schedule at next restart
    Restart the machine
     
    Slartybart, May 19, 2016
    #17
  3. C Drive Missing in Windows 10

    Hello? Can anyone help me?
     
    Jesse Williams, May 20, 2016
    #19
  4. I didn't see anything in the Speccy - thanks for that

    I asked about how you ran Chkdsk - no response from you, so I'll wait.
     
    Slartybart, May 20, 2016
    #20
  5. It came up in the Action Center and said to scan drive for errors. Did that, but it didn't report anything. Then I went through the Control Panel to scan for errors. It fixed it by putting the C: drive back in the Optimization area. But then when I turned it back on the next time, the C: drive was missing again. So I am unsure of what is going on.
     
    Jesse Williams, May 20, 2016
    #21
  6. I'm not sure what you mean
    Control Panel to scan for errors

    but did you follow my suggestion in post# 15

    Command Prompt (Admin)
    Chkdsk C: /R
    Answer Yes to schedule at next restart
    Restart the machine
     
    Slartybart, May 20, 2016
    #22
  7. C Drive Missing in Windows 10

    I will do that now and see what it does.
     
    Jesse Williams, May 21, 2016
    #23
  8. From what I could see when I did that, it really didn't do anything. There is still no C: drive located in the Optimization and Defragment panel.
     
    Jesse Williams, May 21, 2016
    #24
  9. NavyLCDR New Member
    You can always just open command prompt (not sure if it has to be admin command prompt or not) and run the defrag command:

    Microsoft Drive Optimizer
    Copyright (c) 2013 Microsoft Corp.

    Description:

    Optimizes and defragments files on local volumes to
    improve system performance.

    Syntax:

    defrag <volumes> | /C | /E <volumes> [<task(s)>] [/H] [/M [n] | [/U] [/V]] [/I n]

    Where <task(s)> is omitted (traditional defrag), or as follows:
    /A | [/D] [/K] [/L] | /O | /X

    Or, to track an operation already in progress on a volume:
    defrag <volume> /T

    Parameters:

    Value Description

    /A Perform analysis on the specified volumes.

    /C Perform the operation on all volumes.

    /D Perform traditional defrag (this is the default).

    /E Perform the operation on all volumes except those specified.

    /G Optimize the storage tiers on the specified volumes.

    /H Run the operation at normal priority (default is low).

    /I n Tier optimization would run for at most n seconds on each volume.

    /K Perform slab consolidation on the specified volumes.

    /L Perform retrim on the specified volumes.

    /M [n] Run the operation on each volume in parallel in the background.
    At most n threads optimize the storage tiers in parallel.

    /O Perform the proper optimization for each media type.

    /T Track an operation already in progress on the specified volume.

    /U Print the progress of the operation on the screen.

    /V Print verbose output containing the fragmentation statistics.

    /X Perform free space consolidation on the specified volumes.

    Examples:

    defrag C: /U /V
    defrag C: D: /M
    defrag C:\mountpoint /A /U
    defrag /C /H /V
     
    NavyLCDR, May 21, 2016
    #25
  10. But I think there is a problem with the drive. Just ran a chkdsk. I am not sure if there were any problems reported or not. I like having the C: drive show up the Optimization panel.
     
    Jesse Williams, May 21, 2016
    #26
  11. After I ran the chdsk, it is acting strange. It's freezing up.
     
    Jesse Williams, May 21, 2016
    #27
  12. C Drive Missing in Windows 10

    It crashed! Making a new thread in the BSOD section.
     
    Jesse Williams, May 21, 2016
    #28
  13. Jesse Williams, Apr 5, 2018
    #29
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C Drive Missing in Windows 10

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