Windows server 2019 - Folder C:\windows\installer take 160GB space disk

Antony ESPERN 1 Reputation point


i saw today the folder c:\windows\installer take 160GB space disk.
This server has AD roles and an SQL express for sage application install on it, that s it.
All updates has been install.

I don't understand why this folder take so much place on this server ?
Any one has an answer ? is it a bug ?


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  1. Leon Laude 85,726 Reputation points


    When applications are installed and updated on the Windows Operating System a hidden directory "C:\Windows\Installer" is used to store the installer (.msi) files and the patch (.msp) files.

    You might also try the following:

    (Please don't forget to mark helpful replies as answer)

    Best regards,

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  2. Antony ESPERN 1 Reputation point


    Thank you for your help,
    this is a production server and for now there is now need to perform cleanup.
    But for information : Disque cleanup will free 5Gb ( 4.65G windows updates)
    and their is 12G on WINSXS.

    The day i posted this question, their was than 2100 msi files on the installer folder and they make almost all 80,5mo, this is not normal !
    No install was perform and today, three day after 5G was lost again and their is 66 new msi file. Something goes wrong !
    i need to find a fix before there won't be more free space


  3. Antony ESPERN 1 Reputation point


    yes i did it. it is not enough.

    I check the files after read this post :
    All files i mentionned are signed by kaspersky.
    So i uninstall kaspersky and i am moving all file to another network folder before being sure i could deletes them.

    Let see.

    Thank you for your help.

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