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What Does Vista Do With All The Disk Space?

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Comments

  • macman
    macman Posts: 53,129 Forumite
    Part of the Furniture 10,000 Posts Name Dropper
    Nothing ever changes, does it. It's all about who's got the biggest one!
    No free lunch, and no free laptop ;)
  • spud17
    spud17 Posts: 4,441 Forumite
    Part of the Furniture 1,000 Posts Name Dropper Combo Breaker
    Used this once before, nicked it from an article, apologies, as I can't credit anyone but
    Open the Start Menu in Vista and type cmd. This will show you cmd.exe at
    the top of the results. Right click on cmd.exe and choose Run as
    Administrator. This will open a black window, called a DOS prompt, with
    a flashing cursor.

    Type:
    *vssadmin list shadowstorage* and hit enter.

    You will now see exactly how much System Restore is using, and what the
    maximum Vista may use.
    vssadmin list view

    In this example I've already made a change limiting System Restore to
    5GB. To change your maximum we need to use a slightly different form of
    the same command.

    *vssadmin Resize ShadowStorage /For=X: /On=Y: /Maxsize=ZGB*

    * X = the drive you wish to change
    * Y = the drive you wish to have it stored on
    * Z = the maximum size you wish Vista to use
    o Z can be MB or GB with a minimum of 300MB. I suggest you
    stay with GB(gigabytes) for ease of use.

    If we wanted to reduce the space allotted to System Restore to 10GB on
    drive c: we would use the following command:

    *vssadmin Resize ShadowStorage /For=C: /On=C: /Maxsize=10GB*

    /If we had two drives and wished to put System Restore on the second
    drive (drive D:) we would use the following:/

    /*vssadmin Resize ShadowStorage /For=C: /On=D: /Maxsize=10GB*/

    After further investigation I've learned that Vista *WILL NOT* allow
    storage on another partition. Vista will only store shadow copies on the
    same volume! This means that both the For and On switch must point to
    the same volume!

    So let's give it a try. I'm going to increase the space allotted System
    Restore from 5GB to 10GB on my C: drive:
    vssadmin command example

    After pressing Enter Vista performs the command and let's me know it was
    successful.
    vssadmin successfull

    Now using the vssadmin list shadowstorage command we originally used we
    can see the change.
    vssadmin updated

    Let's have a look at some of the Pros and Cons of using this command:

    *PRO*

    * Increased free space on drive
    * Less drive fragmentation due to System Restore resizing

    *CON*

    * Less System Restore points
    * Fewer previous versions of files

    So what do you do? For casual computer users I suggest that you not
    change anything. If you are a power user with huge hard drives I suggest
    you set a size to prevent Vista from dynamically resizing on it's own. I
    think a goog rule of thumb is 10% rounded to the nearest 5GB.

    Drive Size - Shadow Copy Size
    80GB - 10GB
    100GB - 10GB
    120GB - 15GB
    160GB - 15GB
    200GB - 20GB
    250GB - 25GB
    etc.

    So there you have it, System Restore and Shadow Copy in a nutshell.

    Move along, nothing to see.
  • macman
    macman Posts: 53,129 Forumite
    Part of the Furniture 10,000 Posts Name Dropper
    Thanks spud but I believe that this can only be done in Vista Ultimate-not in Vista Home Premium?
    No free lunch, and no free laptop ;)
  • spud17
    spud17 Posts: 4,441 Forumite
    Part of the Furniture 1,000 Posts Name Dropper Combo Breaker
    edited 21 April 2010 at 10:34PM
    macman wrote: »
    Thanks spud but I believe that this can only be done in Vista Ultimate-not in Vista Home Premium?

    I'm 99.99% sure I've done it in Home Premium.

    Have you actually tried it?

    Must go now, need sleeeeeeep.

    More reading

    http://www.viztaview.com/tips/37-tips/63-shadow-volume-copy.html
    Move along, nothing to see.
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