Unable to defrag from CMD despite being logged in as Administrator


  1. windows7student
    Posts : 7
    ultimate 32 bit
       New #1

    Unable to defrag from CMD despite being logged in as Administrator


    Hello

    I have a Thinkpad T60 running windows 7 untimate (trial version) when logged in as an Administrator and when I try to defrag the hard disk from the command prompt using the command:

    c:\>defrag c: /a

    I get the following error:

    "The disk defragmenter cannot start because you have insufficient priveleges to perform this operation. <0x89000024>"

    Any advice would be appreciated. Thanks in advance.
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  3. Hopalong X
    Posts : 6,349
    Windows7 Pro 64bit SP-1; Windows XP Pro 32bit
       New #2

    This is for Windows 7, Win Server 2008 and Vista.> Command Reference Overview [H1S]

    Defrag commands.> Defrag

    I beleive your syntax of the command is wrong. See the second link above.
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  4. slurp812
    Posts : 66
    windows seven
       New #3

    create an icon on desktop, right click. Select "Run as administrator". Now try it....
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  6. Ztruker
    Posts : 6,285
    Windows 10 Pro X64
       New #4

    Or open a Elevated Command Prompt then run it.

    I tried it on my Win 7 X64 with UAC disabled and it works fine exactly as you typed it.
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