Results 1 to 8 of 8
  1. #1
    New Lounger
    Join Date
    Feb 2016
    Posts
    1
    Thanks
    0
    Thanked 0 Times in 0 Posts

    diskmgmt.msc problems

    I have 38 gigs free on my C: drive and I would like to shrink my hard drive to create a new partition but diskmgmt.msc is only allowing a maximum shrink of 3gigs out of the 38. I can't find a solution?

  2. #2
    Super Moderator RetiredGeek's Avatar
    Join Date
    Mar 2004
    Location
    Manning, South Carolina
    Posts
    9,436
    Thanks
    372
    Thanked 1,457 Times in 1,326 Posts
    calistar,

    Welcome to the Lounge as a New Poster!

    Is your C: drive located on a SSD? If so SSD's need at least 20% free space to work efficiently!

    Personally, I wouldn't use Disk Management to accomplish this task. I prefer one of the excellent free tools avaliable like Partition Wizard Mini-Tool Free or EaseUS Partition Master Free.

    And as always don't use either until you have a full Image backup of your drive along with tested boot media to run the restore if needed!

    HTH
    May the Forces of good computing be with you!

    RG

    PowerShell & VBA Rule!

    My Systems: Desktop Specs
    Laptop Specs

  3. #3
    WS Lounge VIP
    Join Date
    Dec 2009
    Location
    Earth
    Posts
    8,191
    Thanks
    48
    Thanked 985 Times in 915 Posts
    Quote Originally Posted by RetiredGeek View Post
    If so SSD's need at least 20% free space to work efficiently
    References please.

    cheers, Paul

  4. #4
    Super Moderator BATcher's Avatar
    Join Date
    Feb 2008
    Location
    A cultural area in SW England
    Posts
    3,420
    Thanks
    33
    Thanked 195 Times in 175 Posts
    The probable reason for the inability to shrink a C: partition with Disk Management is that a system file has been written near the top of the file space. If it's a restore point in System Volume Information you could take your life in your hands by deleting all system restore points and trying again. Some of the third-party defragment programs will identify files at particular locations.

    Retired Geek's suggestion for alternative shrinkers may well be simpler - I have also used Easeus very successfully.
    BATcher

    Time prevents everything happening all at once...

  5. #5
    Super Moderator RetiredGeek's Avatar
    Join Date
    Mar 2004
    Location
    Manning, South Carolina
    Posts
    9,436
    Thanks
    372
    Thanked 1,457 Times in 1,326 Posts
    Paul,

    How about this How-to-Geek article. HTH
    May the Forces of good computing be with you!

    RG

    PowerShell & VBA Rule!

    My Systems: Desktop Specs
    Laptop Specs

  6. #6
    Silver Lounger wavy's Avatar
    Join Date
    Dec 2009
    Location
    ny
    Posts
    2,377
    Thanks
    235
    Thanked 147 Times in 136 Posts
    Just curious, what is your reason for wanting to partition your C drive?
    David

    Just because you don't know where you are going doesn't mean any road will get you there.

  7. #7
    Silver Lounger RolandJS's Avatar
    Join Date
    Dec 2009
    Location
    Austin metro area TX USA
    Posts
    1,731
    Thanks
    95
    Thanked 128 Times in 125 Posts
    As silly as this sounds, it also depends upon which "end" of the SoonToBeShrunk partition is going to be affected; Earlier, after defragging, making sure nothing was on the "back end," I shrunk my OS partition from the "back end," not the "beginning end."
    "Take care of thy backups and thy restores shall take care of thee." Ben Franklin revisited.
    http://collegecafe.fr.yuku.com/forum...-Technologies/

  8. #8
    WS Lounge VIP
    Join Date
    Dec 2009
    Location
    Earth
    Posts
    8,191
    Thanks
    48
    Thanked 985 Times in 915 Posts
    Quote Originally Posted by RetiredGeek View Post
    How about this How-to-Geek article
    The referenced AnandTech test shows that the sustained performance falls with less free space, but at low free space levels, 12%, performance is stable for about 70 seconds. In real world use that is more than good enough for most users, IMO. If you are a heavy IO user then a high performance drive with more free space will give best results.

    cheers, Paul

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •