XP: What is the Msocache Folder and How Do I Remove It?

Local Install Source copies Office installation source files from the Microsoft Office 2003 installation media into a hidden folder on the hard drive called the Msocache folder. This tutorial describes how to remove this folder.

Local Install Source creates a hidden folder when Office 2003 is installed to prevent the user from having to insert the CD during installation and maintenance.

The folder usually takes up > 200 MB of space. You will have to decide if this convenience is worth the hard drive space or not.

You can prevent it from being placed on your drive from the beginning by selecting the Delete installation files checkbox during the installation.

Removing it once it is created is not difficult. Do not use Explorer to delete this folder. Simply running the Disk Cleanup Wizard will take care of it.

    1. Click Start.
    2. Select All Programs.
    3. Select Accessories.
    4. Select System Tools.
    5. Click Disk Cleanup.
    6. Disk Cleanup will do its calculations.
    7. From the Drives list in the Select Drive dialog box, select the hard drive that contains the Msocache folder.
    8. Wait for more calculations to complete.
    9. Select the Office Setup Files checkbox in the Files to Delete list.
    10. Click OK.
    11. When you are asked, Are you sure you want to delete these files?, select Yes.

About David Kirk

David Kirk is one of the original founders of tech-recipes and is currently serving as editor-in-chief. Not only has he been crafting tutorials for over ten years, but in his other life he also enjoys taking care of critically ill patients as an ICU physician.
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The Conversation

Follow the reactions below and share your own thoughts.

  • des

    i found this folder on my DATA partiotion drive and deleted it from there, now certain office updates are failing to install, what should i do

    • Randy

      Remove and then install Office. And as is mentioned above check delete installation files during installation.

  • brat

    hey! i dont have the option to select “Office setup files” and i want to get rid of it. i have an msocache folder on both drives c and d.

    • Same here. Is it safe to remove via explorer?

  • Michal Patch Software

    Thanks mate, this has helped me a lot.

  • Anil Kumar

    How to use MSOCache? Please tell about what is use of this sofware brifly.

  • thx for help but nothing changed

  • VedicMania

    Sorry Dude! It dsn’t wrk.
    I didn’t get ne such thing as “Office Setup Files” checkbox in the Files to Delete list.
    Suggest smthin lse!

    • DJ

      This is an old article, and relates to Office 2003 only.

      With Office 2007 you should not delete this folder (hence not having the option to remove office setup files) as they are used whenever office needs to update or patch itself.

      It’s now a directory we have to live with I’m afraid!

  • sagar

    im using office 2007 . i dont have the option to select “Office setup files” and i want to get rid of it. i have an msocache folder on both drives c and d.

  • guri

    i dont have the option to select “Office setup files”. i have an msocache in drives c.what to do? so that i get rid of it.


    Please dont remove this Folder, It occupies only 315 MB and is useful for your Office 2003….

    • user

      In my hdd it occupies already 731 MB. I would like to use this space for something useful.

  • J. Nygren

    Are these instructions from Microsoft?! Everything goes smoothly until you get to step #9. There your discover there is no “Office Setup Files checkbox” to select. Sigh…

  • Anonymous

    Thaks alot your good information
    It is complete and clear information

  • Anonymous

    more calculation tab dosnt appear to me can u please help mo out!!!!

  • Anonymous

    Thanks a lot guyz…very helpful advise to me. more power!

  • Anonymous

    Thanks a lot guyz..



  • Theprophet007

    I had a trial version of Microsoft Office 2007, it expired and I’m now using open office instead. I uninstalled Microsoft Office and the MSO cache file is still there. I know that I won’t be buying the software so I’m not worried about failed patch updates and stuff so can I delete these files in windows explorer without any unexpected errors?

  • Nev Rice

    Thank you for this info. I followed the instructions to remove MSOCache via Disk Cleanup. However, the latter did not list “Office Setup Files”. Possible reason – there is a folder in there from 2011. No way of forcing it to select MSOCache??