Disk defragmenter will not run or start in Windows 10/8/7

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Anand Khanse is the Admin of TheWindowsClub.com, a 10-year Microsoft MVP Awardee in Windows (2006-16) & a Windows Insider MVP. Please read the entire post & the comments first, create a System Restore Point before making any changes to your system & be careful about any 3rd-party offers while installing freeware.


  1. Awdawd

    number 2 worked for me.


  2. Rodolfo

    I learned something new this day.
    thanks for the info.

  3. Joey Cirrito

    Thank you so much! I’ve tried many other fixes but none other than this worked. I’ve needed to do this for a while too 🙂

  4. Eddy

    while doing your first suggestion, I found that “Disk Defragmenter” is not listed as one of my services. How do I get it installed?
    Thanks eddy

  5. pnut

    I have the same issue, it is not listed…..where is it?

  6. L'angelo Misterioso

    services…Optimize drives

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